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PIT_PIT [208]
2 years ago
11

I don't understand this probability problem. ​

Mathematics
1 answer:
Lelechka [254]2 years ago
3 0

Answer:

D. is the answer if you are given that 40% are purple and 18% are green.

Step-by-step explanation:

So if you do this with replacement, it is just P(green)*P(purple).  Here the probability of purple will not be change because we are putting the first bead back in the bag.

P(green)*P(purple)=.18*.4=0.072 or 7.2%

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Pulse rates of women are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per mi
irakobra [83]

Answer:

a) Mean=0 and Standard deviation=1

b) The z-scores have no units of measurement

Step-by-step explanation:

When we convert all the pulse rates of women to z-scores using the formula;

z=\frac{x-\mu}{\sigma} the mean is 0 and the standard deviation is 1.

The reason is that, the resulting distribution of z-scores forms a normal distribution which has a mean of 0 and a standard deviation of 1.

b) The z-scores are standardize scores and has no units of measurement. They give us how many standard deviations below or above the mean of the corresponding values.

8 0
3 years ago
Point A is plotted at (-5, 3)
Diano4ka-milaya [45]

Answer:

quadrant 1

Step-by-step explanation:

quadrant 1 is (-,+)

5 0
2 years ago
If the area of the rectangle is 130 square inches then what is the rectangles height, h
fomenos

Answer:

130/l in where l is the length of the rectangle

Step-by-step explanation:

The formula for area of a rectangle is length by width where the width is the height of the rectangle

Given that area=130 in²

Lets assume the length of this rectangle is =l inches

Then ;

A=l*w

130 =l*w

130/l = w

130/l in = height

5 0
3 years ago
What are the resulting coordinates of triangle A′B′C′ after reflecting triangle ABC across the origin if the vertices of triangl
Roman55 [17]

Answer:

C

Step-by-step explanation:

When reflecting across the origin, negetives become positives and positives become negetives.

Hope that helps!

6 0
2 years ago
Can somebody help me pls
meriva

Answer:

The answer is D.

Step-by-step explanation:

Because Chicago and Miami are the only places on the table that are both in North america and are cities.

3 0
3 years ago
Read 2 more answers
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