Posted by **Peter** on Friday, January 9, 2009 at 11:42pm.

Maria and Zoe are taking Biology 105 but are in different classes. Maria's class has an average of 78% with a standard deviation of 5% on the midterm, whereas Zoe's class has an average of 83% with a standard deviation of 12%. Assume that scores in both classes follow a normal distribution.

A. Convert Maria's midterm score of 84 to a standard z score.

which is correct?

a. 0.083

b. 0.5

c. 0.2

d. 1.2

e. 6

B Convert Zoe's midterm score of 89 to a standard z score.

a. 1.2

b. 0.5

c. 6

d. 0.917

e. 2.2

C. Who did better relative to her class?

a. Maria

b. Zoe

c. They performed the same.

d. Neither

e. Cannot determine

## Answer This Question

## Related Questions

- Algebra II - Maria and Zoe are taking Biology 105 but are in different classes. ...
- Statistics - Maria and Zoe are taking Biology 105 but are in different classes. ...
- AP Statistics - Maria and Zoe are taking Biology 105 but are in different ...
- Math - Maria is playing a game of chance at the Hibiscus festival, costing $1 ...
- math - Zoe, Minh, and Jake sold some tickets for a school fundraiser. Each ...
- math - zoe, minh, and jake sold some tickets for a school fundraiser. each ...
- Statistics help? - Hi there, I was looking for any assistance or help on how I ...
- Statistics - 80. Florida State University has 14 statistics classes scheduled ...
- Statistics on Psychology - Hi there, I was looking for any assistance or help on...
- math - a car traveling in a straight line has a initial velocity of 12.0 m/s.zoe...

More Related Questions