Question

This Test: 45 pts pos Find the indicated z-scores shown in the graph Click to view.page 1 of the Standard Normal Table The z-scores are Use a comma to separate answers as needed Round to two decimal places as needed )

Answer 1

Starting from last question:-

16.

(a)

Population size:10
Lowest value: 23.4
Highest value: 44.7

Range= highest value-lowest value

=44.7-23.4 = 21.3

(b)

Population size:10
Lowest value: 23.4
Highest value: 58.9

Range= highest value-lowest value

=58.9-23.4

= 35.5

15. we have 10 words in choices

Also we have to make 10 letter word.

Assuming repitition is allowed So each place in a 10 letter word can be filled with 10 ways

So total ways= 10^10

=10000000000

but O is repeated twice

So 10^10 / 2! = 5000000000

14.

The mean of the distribution (μ_x) is equal to n * P = 121*0.63 = 76.2

The variance (σ²_x) is n * P * ( 1 - P ) = 121*0.63*0.37 = 28.2

The standard deviation (σ_x) is sqrt[ n * P * ( 1 - P ) ] = sqrt(28.2) = 5.3