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marysya [2.9K]
3 years ago
13

Suppose that the correlation between midterm 1 and midterm 2 is 0.55; the mean and standard deviation of midterm 1 are 71 and 3,

while for midterm 2 the mean and standard deviation are 81 and 4. There are 21 students in the class. Test, at level 0.01, the hypothesis that the first midterm has no influence on the expected score for the second midterm.
Mathematics
1 answer:
Doss [256]3 years ago
6 0

Answer:

i dont know the answer , sorry

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Which expression is equivalent to 8a +14
andrey2020 [161]

Answer:

2(4a + 7)

Step-by-step explanation:

2 to the 4 and 7

This would give you 8a + 14 because 2 times 4 is 8,  and 2 times 7 is 14.

<em><u>Hope this helps.</u></em>

8 0
3 years ago
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43/14 as decimal rounded to nearest hundredth
anzhelika [568]

Answer:The answer would be 3.07.


I divided 43 and 14 and got 3.07143 and then since you said nearest hundredth I just went from left to right and skipped 2 decimals and cut it and kept 3.07.


Hope this helps!



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3 years ago
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Question 5 (6 points)
mixer [17]

Answer:

The median is close to 90, but there is most likely one student and up to 25 % of the class who did poorly on an exam that otherwise looks pretty easy

Step-by-step explanation:

Hope this helps you!

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3 years ago
Which number is the largest explain how you know 58,700 or 5.87×10^5​
Aleonysh [2.5K]

Answer:

5.87×10^{5}

Step-by-step explanation:

5.87×10^{5} is 587,000 written in scientific notation.

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3 years ago
An animation features an airplane flying in a straight line across the screen from (0, 10) to (45, 160) in 5 seconds. Which para
MA_775_DIABLO [31]

Answer:

X(t)= 9t and y(t)= 30t+10

Step-by-step explanation:

Im pretty sure that’s it bc 45/5 is 9 which would be per second how far x is goin up, and 160-10 (the starting point) is 150. 150/5 is 30 so that’s the rate and 10 is the starting point you add to it.

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3 years ago
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