Normal probabilities : Some of the rounding might be off, double check.

1

2

3

4

5

6

7

1

1 pt

4 decimals

2

1 pt

4 decimals

3

1 pt

4 decimals

4

1 pt

4 decimals

5

1 pt

6

1 pt

7

1 pt

8

9

10

11

8

1 pt

9

1 pt

10

1 pt

Round to the nearest %

11

1 pt

Round to the nearest student

12

12

1 pt

A

B

C

13

13

1 pt

Normal Curve

Mean: $1500

St. deviation: $200

14

15

14

1 pt

Round to nearest percent

15

1 pt

Round.

16

17

16

1 pt

The incubation period for the eggs of a House Wren is normally distributed with a mean time of 336 hrs and a standard deviation of 3.5 hrs. The incubation times for four eggs selected at random are 328hrs, 338hrs, 330hrs, and 341hrs. Match the value to its spot and z-score on the graph.

328

338

330

341

A

B

C

D

17

1 pt

328

338

330

341

-2.29

-1.71

1.43

0.57

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