Solved 1 Act Scores Are Normally Distributed With A Mean Of Chegg

Solved 1 Act Scores Are Normally Distributed With A Mean Of Chegg Question: 1 again, suppose act scores are normally distributed with mean of \mu = 21 and standard deviation of\sigma = 6. a sample of nine act takers is randomly selected. let ̄x be the sample average act score. (a) find \mu ̄x (the mean of ̄x) and \sigma ̄x (the standard deviation of ̄x). (b)find the probability that the. Act test scores are normally distributed with a mean of 21 (μ=21) and standard deviation of5 (σ=5). if all 10,000 students at pvcc took the act, what is the probability that theiraverage score would be greater than 21.15 ?enter your answer using 4 decimal places.hint: use the normal distribution calculator ⇉.

Solved Math Act Scores Are Normally Distributed With A Mean Chegg Question: suppose act scores are normally distributed with mean of \mu = 21 and standard deviation of \sigma = 6.let x be the act score of a randomly selected student. (a)  find the probability that the student’s act score is at most 18. (b) find the probability that the student’s act score is at least 24. (c) find the. Upper: x = 2.0538*2.3 63.6. the lengths of pregnancies are normally distributed with a mean of. 269 days and a standard deviation of 15 days. a. find the probability of a pregnancy lasting 309 days or longer. b. if the length of pregnancy is in the lowest 2%, then the baby is premature. The final exam scores in a statistics class were normally distributed with a mean of μ = 58 and a standard deviation of σ = 4. find the probability that a randomly selected student scored more than 62 on the exam. Statistics and probability questions and answers. math act scores are normally distributed with a mean of 18 and a standard deviation of 6. a particular university sampled 500 of its students and they had a mean of 19 and a standard deviation of 4. which of the following numbers is a statistic:.

Solved 1 Act Mathematics Scores Are Approximately Normally Chegg The final exam scores in a statistics class were normally distributed with a mean of μ = 58 and a standard deviation of σ = 4. find the probability that a randomly selected student scored more than 62 on the exam. Statistics and probability questions and answers. math act scores are normally distributed with a mean of 18 and a standard deviation of 6. a particular university sampled 500 of its students and they had a mean of 19 and a standard deviation of 4. which of the following numbers is a statistic:. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. the area of the shaded region is . z = 0.85; shaded region to left. 0.8023 p (z less than 0.85) = normcdf ( 9999,0.85,0,1) find the area of the shaded region. the graph depicts the standard normal distribution of bone density scores with mean 0 and. X = μ (z)(σ) = 5 (3)(2) = 11. the z score is three. since the mean for the standard normal distribution is zero and the standard deviation is one, then the transformation in equation 6.2.1 produces the distribution z ∼ n(0, 1). the value x comes from a normal distribution with mean μ and standard deviation σ.