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QWhat is the mean of all prime numbers that are within the range of 30 and 50, inclusive?

ID: #4569 Average 232 views
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  • A 38 ✔ ✖
  • B 39.8 ✔ ✖
  • C 42.5 ✔ ✖
  • D 31.4 ✔ ✖
Correct Answer: Option B

Explanation


There are five prime numbers between 30 and 50.
This statement provides information about the quantity and range of prime numbers being considered.

They are 31, 37, 41, 43, and 47.
This list enumerates the prime numbers that fall within the specified range.

Therefore the required average=(31+37+41+43+47)5=1995 =39.8
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