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A survey in a study skills class asked t...

A survey in a study skills class asked the 20 students enrolled in the class how many hours (rounded to the nearest hour) they had spent studying on the previous evening. The 20 responses are summarized by the histogram below.

To the nearest tenth of an hour, what is the average number of hours for the 20 survey responses?

A

`2.0`

B

`2.1`

C

`2.3`

D

`2.5`

Text Solution

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The correct Answer is:
B
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ENGLISH SAT-PRACTICE TEST 3 - MATHEMATICS TEST-EXERCISE
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  2. A survey in a study skills class asked the 20 students enrolled in the...

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  3. A survey in a study skills class asked the 20 students enrolled in the...

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  4. Pentagons have 5 diagonals, as illustrated below. How many diagon...

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  6. The coordinates of the endpoints of bar(GH), in the standard (x,y) coo...

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  7. Let 2x + 3y = 4 and 5x + 6y = 7. What is the value of 8x + 9y ?

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  8. What are the value of theta, between 0 and 2 pi, when tan theta = -1?

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  9. For the complex number i and an interger x, which of the following is ...

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  10. A can of soda pop has the shape of a right circular cylinder with an i...

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  11. The height and radius of the right circular cylinder below are given i...

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  12. Lines l(2) and l(2) intersect each other and 3 parallel lines, l(3), l...

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  13. A rocket lifted off from a launch pad and traveled vertically 30 kilom...

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  14. Machine A produces 500 springs a day. The number of defective springs ...

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  15. The height above the ground, h units, of an objects t seconds after be...

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  16. For all positive values of g and h, which of the following expressions...

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  17. The value of log(e) (5^(13/2)) is between which of the following pairs...

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  18. A storage facility is currently offering a special rate to customers w...

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  19. A storage facility is currently offering a special rate to customers w...

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