The owner of a swimming pool wanted to know more about how the temperature affected the crowds she collected data about the high
temperature in the number of visitors in the average length of stay at the pool each day for two weeks data shown in the scatterplot which statements are supported by the data choose all statements that apply
2 answers:
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Answer:
option A
Step-by-step explanation:
given,
10% A grades 80% B grades 10% C grades
This year, managers with scores less than 35 received C's and those with scores above 425 received A's.
The mean has to be middle of two corresponding cutoff value
μ = 230
Cutoff Off C grade corresponds with the area of 0.10 is table A.
corresponding z- score according to Table A
Z = -1.28
now, standard deviation
σ = 152.3
Correct answer is option A