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3 years ago

9

PLS HELP I DONT UNDERSTAND :( WILL GIVE BRAINLIEST !!!

2 answers:

vodomira [7]3 years ago

5 0

the answer is c

i already done it

Ksju [112]3 years ago

5 0

Answer:

1/3 would be your answer

Step-by-step explanation:

anyway have a great day

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Let n be a positive integer. We sample n numbers a1, a2,..., an from the set {1,...,n} uniformly at random, with replacement. We

zepelin [54]

Answer:

Step-by-step explanation:

4 0

3 years ago

Ten times the sum of half a number x and 8 is 12.

Diano4ka-milaya [45]

BREAKDOWN

10 times: 10 ×

The sum of: ( ) + ( )

which would be : 10 × ( ) + ( )

half a number: 10 × ( X/2 ) + ( )

and 8: 10 × ( X/2 ) + ( 8 )

is 12 : 10 × ( X/2 + 8 ) = 12

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SIMPLIFICATION

Multiply ten: 10 X (X/2 + 8) = 12

which equals to: 5x + 80 = 12

bring the like terms together: 5x = 80 - 12

Equals: 5x = 78

Find out X:. x = 78/5

FINAL ANSWER:. X = 15.9

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3 years ago

Suppose a large shipment of telephones contained 21% defectives. If a sample of size 498 is selected, what is the probability th

grandymaker [24]

Answer:

$P(-3\% < x < 3\%) = 0.901$

Step-by-step explanation:

Given

$p = 21\%$

$n = 498$

Required

$P(-3\% < x < 3\%)$

First, we calculate the z score

$z = \sqrt{p * (1 - p)/n}$

$z = \sqrt{21\% * (1 - 21\%)/498}$

$z = \sqrt{21\% * (79\%)/498}$

$z = \sqrt{0.1659/498}$

$z = \sqrt{0.000333}$

$z = 0.0182$

So:

$P(-3\% < x < 3\%) = P(-3\%/0.0182 < z$

$P(-3\% < x < 3\%) = P(1.648 < z$

From z probability, we have:

$P(-3\% < x < 3\%) = 0.901$

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3 years ago

Suppose you want to be sure that the total cost of the three items does not go over a certain amount. How can you use estimation

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Answer:

i don't konw

Step-by-step explanation:

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3 years ago

Jenni wrote a rational number that is positive. Which of the following is not a possible number that she wrote?

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Answer:

There is no answer.

0 is rational since it can be written as a fraction (0/5, 0/69)

1 is obviously rational. 7/8 is .875 and 5 1/4 is 5.25

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3 years ago