The weight of football players is normally distribufed with a mean of 200 pounds and a standard deviation of 20 pounds. 6. The probability of a player weighing more than 240 pounds is 0.0197 b. M 200 a. 0.0228 D:20 P(z< 240) C. 0.9803 X= 7 40 - 2し0 20 d. 0.4803 240 7. Refer to the infe
The weight of football players is normally distribufed with a mean of 200 pounds and a standard deviation of 20 pounds. 6. The probability of a player weighing more than 240 pounds is 0.0197 b. M 200 a. 0.0228 D:20 P(z< 240) C. 0.9803 X= 7 40 - 2し0 20 d. 0.4803 240 7. Refer to the infe
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Related questions
Question
Q6
Transcribed Image Text:1. The center of a normal curve is
cannot be negätive
6) is the mean of the distribution
always equal to zero
d. is the standard deviation
a.
с.
2. In a standard normal distribution, the
mean is I and the standard deviation is 0
b.
a.
mean and the standard deviation are both 1
mean and the standard deviation can have any value
C.
d. mean is 0 and the standard deviation is 1
3. Z is a standard normal random variable. What is the value of Z if the area to the right of Z is 0.0122?
1.25
b.
a.
-1.25
@ -2.25
d. 2.25
0.01228944
4. Z is a standard normal random variable. The P(-2<Z<-1.15) equals
0.0558
a.
b.
0.475
0.0118
d. 0.1023
C.
5. X is a normally distributed random variąble with a mean of 8 and a standard deviation of 3. The probability that X is
between 6 and 10 is
a.
0.7486
b.
0.6826
C.
0.4972
d.
0.8413
MiP
The weight of football players is normally distributed with a mean of 200 pounds and a standard deviation of 20 pounds.
6. The probability of a player weighing more than 240 pounds is
0.0197
b. 0.0228
C.
M200
a.
0.9803
d. 0.4803
0:20
P(z< 240)
140 - 200
7 90
20
A 240
200
7. Refer to the information in Q6. The probability of a player weighing less than 220 pounds is
0.9938
b. 0.4938
a.
P(x >20)
C.
0.1587
d.
0.8413
8. What percent of players weigh between 170 and 230 pounds?
50%
68.26%
99.72%
d. 86,64%
a.
b.
1
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