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brilliants [131]
2 years ago
6

How to find sample size with unknown standard deviation

Mathematics
1 answer:
ioda2 years ago
6 0

Answer:

za/2: Divide the confidence level by two, and look that area up in the z-table: .95 / 2 = 0.475. ...

E (margin of error): Divide the given width by 2. 6% / 2. ...

: use the given percentage. 41% = 0.41. ...

: subtract. from 1.

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The Davis family drove a total of 587 miles, starting on Friday and ending on Sunday. They drove 182 miles on Friday and 260 mil
valina [46]

Answer:

145

Step-by-step explanation:

Because what you want to do is add 260 to 182 then subtract from 587. I hope that helped! :)

8 0
2 years ago
The length of AB is 9 centimeters. A dilation with a scale factor of 2 is applied to AB. What is the length of the image AB afte
OLEGan [10]

Answer:

18cm

Step-by-step explanation:

Given:

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dilation is used to make an image or in this case AB, with a scale factor of 2 means that its doubling in size. If the scale factor was 1/2 that it would be decreasing in size since it will be half of the original size

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2 years ago
Miguel's teacher asks him to color 4/8 of his grid. He must use 3 colors: red, blue, and green. There must be more green section
Julli [10]
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6 0
3 years ago
Read 2 more answers
Which is the slope of the line y= -3x + 2?​
zavuch27 [327]

Answer:

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Step-by-step explanation:

7 0
3 years ago
25% of what nember is 19
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6 0
3 years ago
Read 2 more answers
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