Question
In: Statistics and Probability
In a recent year, grade 6 Michigan State public school students taking a mathematics assessment test...
In a recent year, grade 6 Michigan State public school students taking a mathematics assessment test had a mean score of 303.1 with a standard deviation of 36. Possible test scores could range from 0 to 1000. Assume that the scores were normally distributed.
a) Find the probability that a student had a score higher than 295.
b) Find the probability that a student had a score between 230 and 305.
c) What is the highest score that would still place a student in the bottom 16% of the scores?
Please show all work or if you used a TI 84 please explain the necessary steps to get the answer, thank you for the help :)
Solutions
orchestra answered 1 year agoRelated Solutions
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The undergraduate grade point averages (UGPA) of students taking an admissions test in a recent year...
The undergraduate grade point averages (UGPA) of students
taking an admissions test in a recent year can be approximated by a
normal distribution, as shown in the figure.
(a) What is the minimum UGPA that would still place a student in
the top
55%
of UGPAs?(b) Between what two values does the middle
5050%
of the UGPAs lie?
3.3842.76Grade point
average
mu equals 3.38μ=3.38
sigma equals 0.19σ=0.19
x
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