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zalisa [80]
3 years ago
6

The distribution of sample means is not always a normal distribution under what circumstances

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
7 0

The distribution of sample means will not be normal when it is grounded on small samples (n < 30) carefully chosen from a population that is not normal because if n < 30, you would the use the t distribution. Normal distribution would only be use if the sample size is large. Large in this case relies on the requirements for accuracy and the shape of the underlying population.

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Line a passes through that point (-8,-7) and has a slope of 5/8. Choose the equation that best represents A
GuDViN [60]

Answer:

y = 5/8 x -2

Step-by-step explanation:

Given that the slope of the line, m=5/8, which passes through the point (-8,-7).

Let the equation of the line be y=mx+c

where m is the slope of the line and c is a constant.

As m=5/8, so the equation of line become

y= 5/8x+c

As the line passes through the point (-8,-7), so putting y= -7 and x= -8, we have

-7 = 5/8(-8)+c

-7 = -5 + c

c= -7 + 5

c= -2

On putting the value of c, the equation of line become

y=5/8 x -2

Hence, the equation of the line is y = 5/8 x -2.

5 0
3 years ago
Directions: Find the inverse of each number.
Alisiya [41]

Answer:

Step-by-step explanation:

Additive inverse:

-3=3

14=-14

-28=28

-1/5=1/5

Multiplicative Inverse:

2/3=3/2

6/18=18/6

5=1/5

11=1/11

3 0
1 year ago
Read 2 more answers
The perimeter of a square is 192 centimeters. If the square is dilated by a scale factor of 0.25, what is the length of each sid
Ulleksa [173]

Answer:

60cm

Step-by-step explanation:

perimeter of a square=4L

192cm=4L

L=48cm

Dilated by ratio 0.25

1 : 0.25 = 48 : 12

New length = 48+12 = 60cm.

6 0
2 years ago
Paul purchased 3 video games for $17.25 each. Which expression is the best choice to help him determine the total amount of mone
amid [387]
(3)(17.25) = 51.75; he spent $51.75

Because everything in the problem is positive, no negative numbers are needed.
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3 years ago
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How many lines of reflectional symmetry does the trapizoid have
inysia [295]
Is their an image to go along with this question ?
6 0
3 years ago
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