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hjlf
3 years ago
12

Sixty nine percent of U.S households play video or computer games. Chose 4 heads of households at random. Find the probability t

hat none play video/computer games?
Mathematics
2 answers:
leva [86]3 years ago
6 0

Answer: 1*(69/100)^0*(31/100)^4 = 0.0092 or 0.0092*100 = 0.92%

statuscvo [17]3 years ago
3 0

Answer: 0.00923521

Step-by-step explanation:

Given : The probability U.S households play video or computer games=69%=0.69

here, the probability of each U.S household play video or computer games is fixed as 0.69

Then, the probability of each U.S household not play video or computer games= 1-0.69=0.31

For independent events the probability of their intersection is product of probability of each event.

Now, the probability that none play video/computer games will be :-

(0.31)^4=0.00923521

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fiasKO [112]
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52.50 + 50 = 102.50. The answer is D. Hope this helps :)
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3 years ago
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3 years ago
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The surface areas of two similar solids are 169 m2 and 81 m2. the volume of the larger solid is 124.92 m3. which proportion corr
ikadub [295]

By finding the scale factor, we will see that the volume of the smaller solid is 86.75 m³.

<h3>How to get the volume of the smaller solid?</h3>

If the solids are similar, then there is a scale factor between the two. Then the relation between the areas is equal to the scale factor squared, and the relation between the volumes is equal to the scale factor cubed.

This means that if the areas are 169 m² and 81 m², then we can write:

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Solving for k, we get:

k = √(169 m²/81 m²) = 1.44

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Replacing k and solving for V we get:

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(124.92m³/ (1.44)³) = V = 86.75 m³

If you want to learn more about scale factors:

brainly.com/question/3457976

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You can also use easier way: $15+0.06*$15=$15.9
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The angle 0 lies in quadrant 1. sin 0=2/5 what is cos 0?
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