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vladimir2022 [97]
2 years ago
6

A parking lot has sixty-one parking spaces numbered from 1 to 61. There are no cars in the parking lot when Jillian pulls in and

randomly parks. What is the probability that the number on the parking space where she parks is greater than or equal to 22?
A. 61/21


B. 40/61


C. 61/40


D. 21/61
Mathematics
1 answer:
Nutka1998 [239]2 years ago
4 0

Answer:

  B. 40/61

Step-by-step explanation:

There are 40 spots out of the 61 in the lot with numbers greater than or equal to 22. The probability of choosing one of them at random is 40/61.

_____

<em>About the answer choices</em>

61/21 and 61/40 are both numbers that are greater than 1. A probability is always a number between 0 and 1 (inclusive), so these answers can be rejected immediately.

There are 21 spots with numbers less than 22, so 21/61 is the probability of choosing one of those. That is not what the question is asking for.

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Answer:

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Arte-miy333 [17]

Answer:

The z-score for the statistics test grade is of 1.11.

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Step-by-step explanation:

Z-score:

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

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In this question:

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The z-score for the calculus test grade is 7.3.

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