Download - August 28, 2013
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August 28, 2013Keystone & Stats
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August 29, 2013Keystone & Stats
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August 30, 2013Keystone & StatsNo 3rd/4th Period
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September 3, 2013Keystone & StatsNo 3rd/5th
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September 4, 2013Keystone & Stats
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September 5, 2013Keystone & Stats
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September 9, 2013What is the greatest common factor (GCF) of 2, 4, 14?A. 2 B. 14 C.28 D. 112
What is the least common multiple(LCM) of 10, 18?A. 2 B. 18 C.90 D. 180
Keystone
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September 10, 2013Keystone
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September 11, 2013Keystone
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September 12, 2013
( π11 π 16π6 π 6 )3
Simplify:
Keystone
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September 13, 2013
(β2π₯2π§ ) (β4 π¦2π§ ) (β3 π₯π¦π§ )Simplify:
Keystone
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September 13, 2013Joeβs test grades in History class are: 92, 89, 85, 89, and 90. The semester final will count as two tests. Joe needs to get a grade of 90 or higher for the semester. What is the minimum score Joe can get on the final test and average 90?
Stats
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September 16, 2013
2πβ 4
(2πβ 4 )3
Simplify:
Keystone
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September 16, 2013
Maggie recently took a road trip. She bought 15 gallons of gasoline for $1.68 per gallon and 12 gallons at a price of $1.76 per gallon. She filled her tank once on the way back with 16 gallons at $1.65 per gallon. What was the average fuel cost per gallon on Maggieβs trip?
Instead of writing the entire question, summarize the important details!
Stats
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September 17, 2013
(2 π₯0 π¦2 )β 3β2 π¦ π₯3Simplify:
Keystone
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September 19, 2013Evaluate:
Keystone
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September 19, 2013Bob had three carries of 8 yards each and five carries of 6 yards each in a recent football game. What was his rushing average
(average yards per carry)?
Stats
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September 20, 2013Evaluate:
8Γ 155 β(5+9 )
Keystone
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September 20, 2013A truck was able to average only 40 mph for the first four hours of a delivery route. How long
must the driver travel at a speed of 55 mph to average 50
mph for the trip?
Stats
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September 23, 2013Evaluate:
(2h π2πβ2 β h4 πβ 1π4 )0
2hβ 3 πβ 4πβ 2
Keystone
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September 23, 2013Juan says that if the standard deviation of a list is zero, then all the numbers on the list are
the same. Is Juan correct? If so, briefly explain why. If not, give a
counterexample.
Stats
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September 24, 2013Evaluate:
β216 π₯296 π¦6 π§126Keystone
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September 24, 2013Would it be appropriate to say
that a distribution with a standard deviation of 10
centimeters is more dispersed than a distribution with a
standard deviation of 5 inches? Support your position.
Stats
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September 25, 2013Simplify the following:
4β3ββ27
β2 ββ8
Keystone
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September 25, 2013A set of data has a standard deviation of 9. Seventeen is
added to each of the original scores in the set of data. What
is the variance and standard deviation of the new set of
data?
Stats
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September 26, 2013Simplify the following:
β3ββ5+3β3ββ5
β8+β18
Keystone
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September 27, 2013Simplify the following:
2β5 β4β10
6 β12Γ·2β3
Keystone
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September 30, 2013Keystone
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September 30, 2013Summarize the question!
Stats
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October 1, 2013
β4 (1+5 )2Γ·6β(42+5)Evaluate:
Keystone
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October 1, 2013Using your calculator, find the mean, median,
variance, and standard deviation for the following:
12, 15, 6, 18, 11, 19, 22, 23, 24, 26, 5, 17, 21, 32, 40
Mean:
Median:
Standard deviation:
Variance:
Stats
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October 2, 2013Using your calculator, find the mean, median,
variance, and standard deviation for the following:
13, 2, 5, 6, 7, 8, 1, 3, 5, 6, 15, 17, 13, 14, 15, 13, 15, 2, 1, 3, 5, 3, 5,
6, 10, 6Mean:
Median:
Standard deviation:
Variance:
Stats
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October 3, 2013Using your calculator, find the mean, median,
variance, and standard deviation for the following:
17, 21, 25, 24, 23, 21, 19, 18, 24, 23, 22, 21, 25, 24, 22, 23, 24, 18, 19, 11, 15, 16, 17, 18, 24, 23, 22,
20, 22Mean:Median
:Standard deviation:
Variance:
Stats
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October 4, 2013Round the following numbers to the hundredths.
7.1412
0.896
12.1387
Keystone & Stats
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October 7, 2013A band just recorded a new album with 9 tracks. The shortest song on the album is 2 minutes and 21 seconds. The longest song on the album is 3 minutes and 43 seconds. What is a reasonable estimate for the total time of the album?
A. 54 minutesB. 27 minutesC. 8 minutesD. 3 minutes
Keystone
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October 8, 2013When Sammy goes to lunch, he can buy a sandwich for $1.16 and a soft drink for $1.89. Which is a reasonable amount that Sammy would spend on 50 sandwiches and 55 soft drinks?
A. $310B. $260C. $160D. $110
Keystone
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October 8, 2013Describe the different between a percentile
and a percentage.
A percentage score indicates the proportion of a test that someone has completed correctly. A percentile score tells us what percent of other scores are less than the data point we are
investigating.
Stats
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October 9, 2013Stephanie is trying to estimate the cost of gift baskets that she is going to give her 4 friends. She knows that baskets cost $6.63 each, candles cost $1.63 each, and candy bars cost $0.94 each. She is also going to get everyone a restaurant gift card for $5.00.Each basket will include the following:β’1 basket β’2 candles β’3 candy bars β’1 gift cardEstimate how much money she will spend on all the gift baskets.
A. $15.00 B. $76.00 C. $60.00 D. $19.00
Keystone
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October 10, 2013Label the following polynomials, βPOLYNOMIALβ or βNOT A POLYNOMIALβ.
For the polynomial below, label the number of terms in the polynomial and the degree of the polynomial.
Keystone
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October 10, 2013Chloe scored 80% on her English test. There are 249 other students who took the same exam. No one received the same score as she did, but 113 students received a lower score. What is her percentile ranking. What percentage of students scored better than Chloe?
Stats
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October 11, 2013Keystone
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October 11, 2013Find the median for the following sets of data.
3, 11, 6, 5, 4, 7, 12, 3, 10
4, 2, 11, 6, 2, 9
Stats
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October 14, 2013Keystone
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October 14, 2013
3, 11, 6, 5, 4, 7, 12, 3, 10
4, 2, 11, 6, 2, 9
Find Q1 and Q3 for the following sets of data.
Stats
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October 15, 2013Keystone
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October 15, 2013Suppose you received the highest
score on an exam. Your friend scored the second-highest score, yet you
both were in the 99th percentile. How can this be?
Stats
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October 16, 2013Keystone
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October 16 (or 17), 2013The average 20- to 29-year-old man is
69.6 inches tall, with a standard deviation of 2.7 inches, while the
average 20- to 29-year-old woman is 64.1 inches tall, with a standard deviation of 2.6 inches. Who is
relatively taller, a 75-inch man or a 70-inch woman?
Stats
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October 17, 2013
and
Find the GCF.
Keystone
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October 18, 2013
π ππ+π ππβππ πFactor out the GCF.
π (πβπ )βπ(π βπ )Factor completely.
Keystone
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October 21, 2013
ππππ+πππ ππ+ππ ππ+ππ π ππ
Factor completely.
ππππβπππ+πππβππFactor completely.
Keystone
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October 21, 2013Find the mean, median, mode, range, variance and standard deviation for the following set of
data USING YOUR CALCULATOR!
Stats
9, 24, 8, 9, 5, 8, 9, 10, 8, 10, 15, 2, 3, 18, 20, 1, 17, 2, 19, 3
Yesβ¦. Your calculator! If you do not have it, GO GET IT RIGHT NOW!!! You donβt have to ask today, just go! You will not be
going later in the period.