4 years ago

Need help with a math question

Mathematics

1 answer:

solmaris [256]4 years ago

7 0

Answer:

Step-by-step explanation:

We are given the data of number of cars observed waiting in line at the beginning of 2 minute intervals between 3 and 5 p.m. on Friday.

We are to find the probability (in percent) that there is no one in line.

Sum of frequencies = 2 + 9 + 16 + 12 + 8 + 6 + 4 + 2 + 1 = 60

Frequency of no car in line = 2

P (no car in line) = 2 / 60 × 100 = 3.3% ≈ 3%

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