Mathematics, 28.01.2020 03:31 ttangelique
In a recent year, washington state public school students taking a mathematics assessment test had a mean score of 276.1 and a standard deviation of 34.4. a random sample of 64 students is drawn form this population.(a) identifying the mean and standard error of the sample mean score ¯x (x ) what is the distribution of ¯ x? and why? (c) find the probability that the sample mean score ¯x(x bar) is at least 285.
Answers: 3
Mathematics, 21.06.2019 19:30, indiaseel2744
Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)
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Mathematics, 21.06.2019 23:30, Cheyenne7327
Aparking garage charges $1.12 for the first hour and 0.50 for each additional hour. what is the maximum length of time tom can park in the garage if we wishes to play no more than $5.62
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Mathematics, 22.06.2019 01:30, sammuelanderson1371
If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2
Answers: 1
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