All categories

3 years ago

A 98% confidence interval is found to be (50, 60). What is the margin of error?

Mathematics

1 answer:

miss Akunina [59]3 years ago

3 0

Answer:

D. 5

Step-by-step explanation:

Mean: (50+60)/2

110/2

Margin of error:

60 - 55

You might be interested in

Simplify<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%5Cfrac%7B3%7D%7B8%7D%20%7D%20" id="TexFormula1" title=" \sqrt{ \f

Pie

Answer:

B (√6)/4

Step-by-step explanation:

The smallest multiplier that will make the denominator of the fraction into a perfect square is 2, so you have ...

$\displaystyle\sqrt{\frac{3}{8}}=\sqrt{\frac{3\cdot 2}{8\cdot 2}}\\\\=\sqrt{\frac{6}{16}}=\frac{\sqrt{6}}{\sqrt{16}}\\\\=\frac{\sqrt{6}}{4}$

_____

Answer choice D is also a correct rationalization of the denominator, but is not simplified as far as it can be. √24 = 2√6, so a factor of 2 can be cancelled from numerator and denominator, giving answer choice B.

3 0

3 years ago

Is 6^-2 positive or negative? Explain.

Gnoma [55]

Answer:

It's positive when you have 6^-2 it's the same as having $(\frac{1}{6})^{2} \\$ . So 6^-2 it's 1/36.

Step-by-step explanation:

7 0

3 years ago

A rectangle with area

faust18 [17]

Answer:

Step-by-step explanation

width is 9. length is 14

8 0

2 years ago

Read 2 more answers

A basketball player has already scored 56 points in a game. The team record for points in a game is 72. Which equation would all

maks197457 [2]

A because if you subtract 56 from both sides, then x would show you what equals the tied record

8 0

3 years ago

7. A letter from the word PERSONALITY and a card from a standard deck are chosen at random. How many outcomes are possible?

yKpoI14uk [10]

Answer:

Step-by-step explanation:

There are more than eleven cards in a deck but there can only be one outcome because there are only 11 letters in the word PERSONALITY.

8 0

3 years ago