TEKS.MATH.9-12.VI.B.3

What is the range?

• average
• biggest-smallest
• the middle #
• # happening the most

Tags

TEKS.MATH.9-12.IV.D.1

TEKS.MATH.9-12.VI.B.3

What is the Mean?
9, 5, 7

• 8
• 11
• 7
• 6

Tags

TEKS.MATH.9-12.IV.D.1

TEKS.MATH.9-12.VI.B.3

Find the Mean of the data set

• 82
• 86
• 88
• 92

Tags

TEKS.MATH.9-12.IV.D.1

TEKS.MATH.9-12.VI.B.3

If the variance of a data set is 30.25, what is the standard deviation?

• 5.5
• 15.125
• 60.5
• 915.0625

Tags

TEKS.MATH.9-12.IV.D.1

TEKS.MATH.9-12.VI.B.3

What is the range of the set: 49, 68, 62, 47, 39, 54, 43

• 25
• 29
• 31
• 19

Tags

TEKS.MATH.9-12.IV.D.1

TEKS.MATH.9-12.VI.B.3

How many total people took the survey?

• 50
• 150
• 100
• 200

Tags

TEKS.MATH.9-12.VI.B.3

A random sample of the students in two different universities were surveyed for their sleep habits. The results are shown in the table above. Which of the following statements is supported by the information in the table?

• The hours of sleep per night varies more among students at University A than students at University B.

• More students attend University B than University A.

• More than half of the students at University B get 7 hours of sleep per night.

• Half of the students at University A get 6 hours of sleep per night.

Tags

TEKS.MATH.9-12.IV.D.1

TEKS.MATH.9-12.VI.B.3

How do you find the median of a data set that has two middle numbers?

• You pick the higher middle number

• You pick the lower middle number

• Add the two middle numbers and divide it by 2

• Subtract the two middle numbers and divide by 2

Tags

TEKS.MATH.9-12.IV.D.1

TEKS.MATH.9-12.VI.B.3

Choose the statistical question.

• How many goals has Christopher scored?

• How many goals has each member of the soccer team scored?

• How many people are on the soccer team?

• Who has scored the most goals on the soccer team?

Tags

TEKS.MATH.9-12.VI.B.3

The term "snowstorms of note" applies to all snowfalls over 6 inches. The snowfall amounts for

snowstorms of note in Utica, New York, over a four-year period are as follows: 7.1, 9.2, 8.0, 6.1,

14.4, 8.5, 6.1, 6.8, 7.7, 21.5, 6.7, 9.0, 8.4, 7.0, 11.5, 14.1, 9.5, 8.6

What are the mean and population standard deviation for these data, to the nearest hundredth?

• mean = 9.46; standard deviation = 3.74

• mean = 9.46; standard deviation = 3.85

• mean = 9.45; standard deviation = 3.74

• mean = 9.45; standard deviation = 3.85

Tags

TEKS.MATH.9-12.IV.D.1

TEKS.MATH.9-12.VI.B.3