Answer: a = 2.19
Assume that z-scores are normally distributed with a mean of O and a standard deviation of...
Assume that z scores are normally distributed with a mean of O and a standard deviation of 1. If Pl-a<z<a) = 0.4314, find a. 1.49 0.57 -0.18 0.3328 Question 5 O out of 2 points A coin is tossed 20 times. A person, who claims to have extrasensory perception, is asked to predict the outcome of each flip in advance. She predicts correctly on 16 tosses. What is the probability X of being correct 16 or more times by guessing?...
Solve the problem. Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1. If Pa <za)-0.4314,find a. 0.57 -0.18 1.49 0.3328
X is a normally distributed variable with mean p = 30 and standard deviation o = 4. Find P(x < 40)
stats Assume that z-scores are normally distributed with a mean of O and a standard deviation of 1. If P(z > d) = 0.9861, find d. d (Round to two decimal places.)
6) Assume X is a normally distributed random variable with mean μ= 53 and standard deviation σ-12. Find P(52<X< 62). A) 0.5137 B)0.4269 C) 0.3066 D) 0.2108 E) 0.3635
CI Assume the random variable x is normally distributed with mean probability 89 and standard deviation ơ 4 Find the indicated Px 83) P(x < 83) (Round to four decimal places as needed.) Enter your answer in the answer box imal p O Type here to search 图自3 e )
Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P ( − 0.7 < z < b ) = 0.749 , find b. b= (round to three decimal places)
Solve the problem. Assume that Z e normally distributed with parameters, (u = 0, 0 = 1). If P(-k<Z<k) - 0.06376, find k. 0.18 0.08 1.64 1.49 Moving to another question will save this response.
Given that z is the standard normal variable with mean o and standard deviation 1. Then P(-2.25 < < -1.27) is O 0.024 O 0.0898 O 0.8980 O 0.0122
15) Assume that z scores are normally distributed with a mean of 0 and a standard deviation 15) of 1. If P(z> c) 0.109, find c. olve the problem. 16) 16) Scores on an English test are normally distributed with a mean of 37.4 and a standard deviation of 7.9. Find the score that separates the top 59% from the bottom 41% 17) Suppose that replacement times for washing machines are normally distributed with a 17) mean of 10.9 years...