Question

1) Assume that thermometer readings are normally distributed with a mean of 0degreesC and a standard deviation of 1.00degreesC. A thermometer is randomly selected and tested. For the case​ below, draw a​ sketch, and find the probability of the reading.​ (The given values are in Celsius​ degrees.)
Between 1.00 and 2.00

Choose the correct graph below.

a) z=1.00 z=2.00 b) z=1.00 z=2.00 c) z=1.00 z=2.00

2) Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Find the probability that a given score is between negative 2.02 and 3.62 and draw a sketch of the region.

Choose the correct graph below.

a) 2.02 3.62 b) -2.02 3.62 c) -2.02 3.62 d) -2.02 3.62

3) Find the indicated critical value.
z0.04

z0.04=__.
​(Round to two decimal places as​ needed.)

Answer 1

Solution

1

Choose the correct graph below.

2.