Mathematics, 13.08.2019 01:30, dejhuanstafford8512
Astudy was designed to investigate the effects of two variables, (1) a student's level of mathematical anxiety and (2) teaching method, on a student's achievement in a mathematics course. students who had a low level of mathematical anxiety were taught using the traditional expository method. these students obtained a mean score of 420 with a standard deviation of 20 on a standardized test. assuming no information concerning the shape of the distribution is known, what percentage of the students scored between 380 and 460?
Answers: 2
Mathematics, 21.06.2019 14:50, brad7330
An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x
Answers: 1
Mathematics, 21.06.2019 17:10, ieyaalzhraa
The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable
Answers: 2
Mathematics, 21.06.2019 19:00, munozgiselle
If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9
Answers: 2
Mathematics, 21.06.2019 22:30, brendaslater49p6ttxt
We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get
Answers: 1
Astudy was designed to investigate the effects of two variables, (1) a student's level of mathematic...
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