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sweet-ann [11.9K]

2 years ago

9

A school psychologist at a large high school took a random sample of 16 students and asked how much sleep they get on a typical

weekend night. The sample data were roughly symmetric with a mean of 8.75 hours and a standard deviation of 1.5 hours

1 answer:

puteri [66]2 years ago

7 0

Answer:

8.75 +/- 0.657

Step-by-step explanation:

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Solve 5n=20 math right now please

maksim [4K]

Answer:

n=4

Step-by-step explanation:

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3 years ago

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3x+2=11 plz hep im slow in math

stealth61 [152]

Answer:

3

Step-by-step explanation:

3×3=9+2=11. so 3 is the answer.

3 0

3 years ago

Nine buses hold 85 people each. If 693 people buy tickets for a trip, how many seats won’t be taken?

Greeley [361]

Answer:

72

Step-by-step explanation:

you take 85 * 9

85 = # of seats

9 = # of buses

then you get 765

next, you take 765 - 693

765 = # of seats

693 = # people who bought tickets for a trip

finally you get 72

72 = # of empty seats

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2 years ago

What is the angle measure of D?<br><br> 52°<br><br><br> 56°<br><br><br> 74°<br><br><br> 102°

Westkost [7]

Answer:

52°

Step-by-step explanation:

<D = 360 - (78+106 + 124)

<D = 360 - 308

<D = 52°

7 0

2 years ago

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Fifteen students were asked how much money they spent to the nearest whole dollar, in the school cafeteria one week. Their respo

dem82 [27]

Answer:

Check Explanation.

Step-by-step explanation:

The histogram displaying the amount spent by the 15 kids in the school cafeteria in one week is shown in the attached image to this answer.

Hope this Helps!!!

8 0

2 years ago