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Kaylis [27]
3 years ago
5

A random sample of n = 4 scores is obtained from a normal population with m = 30 and s = 8. what is the probability that the sam

ple mean will be smaller than m = 22? 0.00003 0.0228 0.1587 0.3085
Mathematics
1 answer:
11111nata11111 [884]3 years ago
5 0

A repeated-measures study using a sample of n = 20 participants would A set of n = 25 pairs of scores (X and Y values) has a Pearson correlation of r = 0.80. How much of the variance for the Y scores is predicted by the relationship with X?0.64 or 64%
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What is 2. 3/6 +1/6 +1 2/3
Kaylis [27]
3/6+1/6+1 2/3
Make 1 2/3 into an improper fraction:
5/3
Give them all common denominators by multiplying both sides of 5/3 by 2:
10/6
Then the question becomes:
3/6+1/6+10/6
Now you add the numerators and the denominator stays the same:
14/6
Now you can simplify by dividing both sides by 2:
7/3
Now you can make it a mixed number:
2 1/3

Hope this helps :)
8 0
3 years ago
Read 2 more answers
Can someone help me please
kobusy [5.1K]

Answer: $112, 16 trips

Step-by-step explanation:

You would plug 9 into the equation for t. Then for the total amount until she was out of money you would divide 256 (her total amount of money) by 16 (the toll cost per trip)

6 0
3 years ago
A system of two equations includes the equation y = 2x + 8 If the system has no solutions, which of the following can be the oth
kotegsom [21]
Answer:C
the answer would be C because there would be no answer.
6 0
3 years ago
Which letter represents the y-intercept in the slope-intercept equation of a line: y = mx + b?
sergey [27]
The slope-intercept form of a line is:

y=mx+b

m=slope=(y2-y1)/(x2-x1)

b=y-intercept (the value of y when x=zero)


8 0
4 years ago
Whats the answer?<br> A)<br> B)<br> C)<br> D)
Katen [24]
Thats gonna be region A.

lets check...this point is in that region (-1,3)
now we sub into our equations and see if it is true

y < = -5/2x + 4                      y > = -1/2x - 2
3 < = -5/2(-1) + 4                  3 > = -1/2(-1) - 2
3 < = 5/2 + 4                         3 > = 1/2 - 2
3 < = 5/2 + 8/2                      3 > = 1/2 - 4/2
3 < = 13/2                             3 > = - 3/2
3 < = 6 1/2...true                   3 > = - 1 1/2...true

so it is region A...100% sure

8 0
3 years ago
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