A random group of 100 male business managers was gathered together. Of them, 81 were wearing ties. What percent is this? Answer
1 answer:
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Answer:
Approximate probability that is less than 2 = 0.1515
Step-by-step explanation:
Given -
Mean = 2.2
Standard deviation = 1.4
Sample size ( n ) = 52
Let be the mean of accidents per week at the intersection during one year (52 weeks) .
probability that is less than 2 =
=
Putting
= ( Using Z table )
= 0.1515
Answer:
- The grade point average is 2.92
- The student didn't make the Dean's list because the student's GPA is less than 3.0
Step-by-step explanation:
- I take the grades as A,D,A,C,B not AA,DD,AA,CC,BB.
- I take numbers of credit hours as 4,2,2,3,1 not as 44, 22, 22, 33, and 11.
Since quality points to letter grades are A=4; B=3; C=2; D=1; F=0, weighted mean is the sum of the qulity points times corresponding credit hours divided by the total credit hours:
≈ 2.92
Since 2.92<3.0, the student is not in Dean's list.