Provide an appropriate response. Round to the nearest hundredth

x - P(x)

0 - 0.15

1 - 0.09

2 - 0.12

3 - 0.16

4 - 0.48

Answers

o = 2.24

o = 1.50

o = 1.55

o = 3.11

5. Find the standard deviation of the data summarized in the given frequency distribution.

score - students

50/59 - 5

60/69 - 13

70/79 - 5

80/89 - 8

90/99 - 9

Answers

13.3

14.7

14

12.6

6. Find the mean of the given probability distribution

In a certain town, 70% of adults have a college degree. The accompanying table describes the probability distribution for the number of adults (among 4 randomly selected adults) who have a college degree.

x - P(x)

0 - 0.0081

1 - 0.0756

2 - 0.2646

3 - 0.4116

4 - 0.2401

Answers

u = 2.70

u = 2.00

u = 2.81

u = 2.80

7. Find the mean of the data summarized in the given frequency distribution.

A company had 80 employees whose salaries are summarized in the frequency distribution below. Find the mean salary.

salary ($) - Employees

5,001/10,000 - 17

10,001/15,000 - 20

15,001/20,000 - 12

20,001/25,000 - 14

25,001/30,000 - 17

Answers

$15,412.50

$17,125.00

$17,500

$18,837.50