Question

1) A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and 52.0 minutes. Find the probability that a given class period runs between 51.25 and 51.75 minutes.

Find the probability of selecting a class that runs between 51.25 and 51.75 minutes.
__. ​(Round to three decimal places as​ needed.)

2) Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 and standard deviation 1.
Z=0.67

The area of the shaded region is _.
​(Round to four decimal places as​ needed.)

3) Find the area of the shaded region. The graph depicts the standard normal distribution of bone density scores with mean 0 and standard deviation 1.
z=-0.92

The area of the shaded region is _.
​(Round to four decimal places as​ needed.)

4) Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1.
z=0.8944

The indicated z score is _.
​(Round to two decimal places as​ needed.)

5)Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1.
z=0.2327 z=0
The indicated z score is _.
​(Round to two decimal places as​ needed.)

6) Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1.
z=0 z=o.1762

The indicated z score is _.
​(Round to two decimal places as​ needed.)

Answer 1