Use the normal distribution of SAT critical reading scores for which the mean is 514 and the standard deviation is 115. Assume the variable x is normally distributed. (a) What percent of the SAT verbal scores are less than 650? (b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 550? Click to view page 1 of the standard normal table. LOADING... Click to view page 2 of the standard normal table. LOADING... Question content area bottom Part 1 (a) Approximately 1.181.18% of the SAT verbal scores are less than 650. (Round to two decimal places as needed.) Part 2 (b) You would expect that approximately 0.880.88 SAT verbal scores would be greater than 550. (Round to the nearest whole number as needed.)
Use the normal distribution of SAT critical reading scores for which the mean is 514 and the standard deviation is 115. Assume the variable x is normally distributed. (a) What percent of the SAT verbal scores are less than 650? (b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 550? Click to view page 1 of the standard normal table. LOADING... Click to view page 2 of the standard normal table. LOADING... Question content area bottom Part 1 (a) Approximately 1.181.18% of the SAT verbal scores are less than 650. (Round to two decimal places as needed.) Part 2 (b) You would expect that approximately 0.880.88 SAT verbal scores would be greater than 550. (Round to the nearest whole number as needed.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Question
Use the normal distribution of SAT critical reading scores for which the mean is
normally distributed .
514
and the standard deviation is
115.
Assume the variable x is |
(a)
|
What percent of the SAT verbal scores are less than
650?
|
|
(b)
|
If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than
550?
|
Click to view page 1 of the standard normal table.
LOADING...
Click to view page 2 of the standard normal table.
LOADING...
Question content area bottom
Part 1
(a)
Approximately
1.181.18%
of the SAT verbal scores are less than
650.
(Round to two decimal places as needed.)
Part 2
(b)
You would expect that approximately
0.880.88
SAT verbal scores would be greater than
550.
(Round to the nearest whole number as needed.) Expert Solution
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