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3 years ago

Help !!!!

1 answer:

6 0

The mean of the data is 11

now we find the difference between the mean and each number
1, 2, 3, 0.5, 0.25, 1.25, 1.

now we square the numbers
1, 4, 9, 0.25, 0.0625, 1.

now we find the mean of the new numbers
which is 2.1875

2.1875 is your standard deviation.

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The game show contestant spins a spinner with the letters E, W, Y, l and Z on it, then either an easy or a hard question is pick

prisoha [69]

Answer:

1/5

Step-by-step explanation:

We assume the events are independent, so the probability of the joint event is the product of the probabilities of the individual events.

P(Y or W) = 2 letters of 5 = 2/5

P(easy) = 1 of 2 kinds = 1/2

The product of these is ...

P((Y or W) and (easy)) = (2/5)(1/2) = 1/5

_____

In both cases, we have to assume that each of the possible outcomes is equally likely.

5 0

3 years ago

1 2/3 - 3/5 as fraction

densk [106]

Answer:

1 1/15 or 16/15

Step-by-step explanation:

Find the common denominator.

25/15 - 9/15 = 16/15

Have a nice day!!

Hope this helps!!

3 0

3 years ago

Write an equation for when k= 1/6

Elden [556K]

Answer:

2/6 - 1/6 = k

Step-by-step explanation:

3 0

3 years ago

Dylan read his book for 2 2/3 hours and Faith read her's for 1 1/5.How much longer did did Dylan read then Faith?

Damm [24]

Answer:

1 7/15

Step-by-step explanation:

2-1=1

then you make 2/3 and 1/5 have the same denominator -

5*3=15

?/15 ?/15

multiply 2 by 5 which is 10, so 10/15

then multiply 1 by 3 which is 3/15

subtract 3/15 from 10/15 which is 7/15

4 0

3 years ago

Solve for r r=c/2π c=15

givi [52]

<span>In getting the value of R in the formula of the circumference that you give where as the circumference is equals to 15, the derived formula is R=C/2pi and the answer would be that R is equals to 2.39. I hope you are satisfied with my answer and feel free to ask for more if you have more questions and further clarifications </span>

4 0

3 years ago