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Dima020 [189]
2 years ago
11

Can someone help me out

Mathematics
1 answer:
Rufina [12.5K]2 years ago
6 0

Answer:

B

Step-by-step explanation:

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Help!, i honestly forgot this lol
jeka94

Answer:

A

Step-by-step explanation:

8 0
3 years ago
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There are 32 times students can work in the computer lab during one week. If 24 students can work in the computer lab at one tim
uysha [10]
600 students can work in the lab

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For each of the following studies, say whether you would use a t test for dependent means or a t test for independent means.
Shtirlitz [24]

Answer:

1. T test for independent means

2. T test for dependent means

3. T test for dependent means

Step-by-step explanation:

In number 1, the two groups are unrelated. The first group has 25 subjects and they're all unemployed. The second group has 24 subjects and their employment status is not stated and might not be the same all through. Also, the first group is receiving a new type of job skills program while the second group is taking the standard job skills program.

- The groups in the experiment are unrelated

- The tests in the research are unrelated

- The purpose of the research is unreasonable - the researcher seeks to measure how well all 49 subjects perform on 'a' job skills test! No comparison between the scores or mean scores of the two groups.

In number 2, the researcher uses the same subjects and also measures the same variable but twice. This is a good example of a study where the t test for dependent means can be taken. Same applies in case 3.

5 0
3 years ago
At Wallys school 30% of the student are in 8th grade if there are 470 students total find the number of 8th grade students
kiruha [24]
30%*470=141 (So the number of students in 8 grade is 141)

4 0
3 years ago
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Find the midpoint of the line segment joining the points r(1,4) s(-3,7)
skad [1K]
Formula for mid point.
(x1/2+x2/2 , y1/2+ y2/2)

Mid point=
(1/2+ (-3)/2 , 4/2+ 7/2)
(-2/2 , 11/2)
(-1, 5.5)
5 0
3 years ago
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