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larisa [96]
3 years ago
5

The number of sit-ups that all tenth-grade girls can do in 5 minutes is normally distributed. Beth surveyed 20 of her fellow int

ramural tennis players, all tenth-grade girls, and determined the mean number of sit-ups they could do. Can she make an inference about the population mean for all tenth-grade girls based on the sample?​
Mathematics
2 answers:
Zanzabum3 years ago
8 0

Answer: 5x20

Step-by-step explanation:

balu736 [363]3 years ago
7 0

Answer:

<em>B. No, because she did not use a simple random sample.</em>

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Which data plot represents this data set?
Citrus2011 [14]
The answer to this is D.
6 0
4 years ago
The ratio of boys to girls in a class is 4 : 5
Fofino [41]

Answer: 4/9 of the class are boys and 5/9 of the class are girls.

Step-by-step explanation:

  1. There are 9 nine students in total in the class since 4 + 5 = 9.
  2. Input the amount of boys and girls there are in the class in the numerator  and have 9 as the denominator. 4/9 of the class are boys and 5/9 of the class are girls.
7 0
3 years ago
Read 2 more answers
⦁ A total of 640 people voted in an election. The circle graph shows the results. ⦁ How many people voted for Goron? Show your w
Bezzdna [24]

Circle graphs or pie charts are used to represent data in percentages or proportions

  • 192 voted for Goron
  • 288 voted for Smith or Fishman

<h3>People that voted for Goron</h3>

The total number of votes is given as:

Total = 640

The circle chart is not given.

So, we make use of an assumed value

Assume 30% voted for Goron

The number of people would be:

Goron = 30% * 640

Evaluate

Goron = 192

Hence, 192 voted for Goron using the assumed value

<h3>People that voted for Smith or Fishman</h3>

Assume 45% voted for Smith or Fishman

The number of people would be:

Smith or Fishman = 45% * 640

Evaluate

Smith or Fishman = 288

Hence, 288 voted for Smith or Fishman using the assumed value

Read more about circle graphs at:

brainly.com/question/24461724

8 0
3 years ago
Convert 50 m/s to miles/hr
poizon [28]
Answer is: 111.847

Method:
1 m/s = 2.23693629 mi/hr

Therefore ->
50 (m/s) * 2.23693629 (mi/hr) = 111.847 mi/hr

(Thanks to google)
7 0
3 years ago
This is part of my knowledge check that's due today at 11:59 am. Please help me on this question
lys-0071 [83]
7 cm (you divide 56 by 8)
6 0
3 years ago
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