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3 years ago

7

There are 100 Skittles. 94 are blue and 6 are red. If you take 5 Skittles, what’s the chance one will be red? What’s the chance

all 5 will be red?

1 answer:

Art [367]3 years ago

7 0

Answer:

6/100 +94/100

3/50 +47/50

3+47/50

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At a store ,apples cost $5.00 for 2 pounds.what is the ratio of dollars to pounds of apples

Firdavs [7]

Answer:

$2.50 per pound of apple

Step-by-step explanation:

Or if you have to write it as a fraction $2.50/ 1

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3 years ago

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Audrey is buying a nee car for $32,998. She plans to make a down payment of $4,200. If she's to make a monthly payments of $525

Airida [17]

4,200+525(5×12)
4,200+525(60)=
4,200+31,500=35,700

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4 years ago

10 different names are put into a computer and one of the names is Colin. On a Saturday the computer chooses 2 names at random.

aivan3 [116]

Answer:

19/100

Step-by-step explanation:

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3 years ago

12. If a manufacturer conducted a survey among randomly selected target market households and wanted to be 95% confident that th

atroni [7]

Answer:

$n=\frac{0.5(1-0.5)}{(\frac{0.03}{1.96})^2}=1067.11$

And rounded up we have that n=1068

Step-by-step explanation:

We have the following info given:

$Confidence= 0.95$ the confidence level desired

$ME =0.03$ represent the margin of error desired

The margin of error for the proportion interval is given by this formula:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$ (a)

The confidence level is 95% or 0.95, the significance is $\alpha=0.05$ and the critical value for this case using the normal standard distribution would be $z_{\alpha/2}=1.96$

Since we don't have prior information we can use $\hat p= 0.5$ as an unbiased estimator

Also we know that $ME =\pm 0.03$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

And replacing into equation (b) the values from part a we got:

$n=\frac{0.5(1-0.5)}{(\frac{0.03}{1.96})^2}=1067.11$

And rounded up we have that n=1068

6 0

3 years ago

Based on the information below, choose the correct answers. Note: The monthly loan payment was calculated at 119 payments of $33

Margaret [11]

Answer:

$122.04
36.94%

Step-by-step explanation:

a) The amount of concern is ...

(total interest)/(number of payments) = interest/payment

$14,644.95/120 ≈ $122.04 . . . . amount of interest per payment

__

b) The ratio of concern is ...

(total interest)/(total payments) × 100% = 14,644.95/39,644.95 × 100%

≈ 36.94% . . . . percent of total payments that is interest

6 0

3 years ago