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jok3333 [9.3K]
4 years ago
8

Using the frequency table below, what is the probability of people that are not boys? 10% 20% 30% 50%

Mathematics
1 answer:
maxonik [38]4 years ago
4 0

Answer:

50%

Step-by-step explanation:

Out of the 200 total people, 100 of them are not boys (the only people on this table who are not boys are girls) so the probability is 100 / 200 = 1 / 2 = 50%.

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A survey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand X aspirin. How many doctors use brand X aspirin
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Answer:

1,200 out of 2000 doctors use X aspirin

Step-by-step explanation:

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3 years ago
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A card is selected at random from an ordinary deck of 52 cards. What is the probability that it is either an ace or a spade
tamaranim1 [39]

Answer: 4/13

Step-by-step explanation:

Number of cards in a deck = 52

Number of spades = 13

Number of aces = 4

Number of ace of spade = 1

Probability of either a spade or an ace :

P(spade or ace) = P(spade U ace)

P(spade U ace) = p(spade) + p(ace) - p(spade n ace)

Probability = required outcome / Total possible outcomes

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P(ace) = 4 / 52

P(spade n ace) = 1 / 52

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= 13/52 + 4/52 - 1/52

= 16 / 52 = 4 /13

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3 years ago
9. How many ways can 6 different items be arranged in a line and how many ways can 6 different items be arranged in a circle? 1​
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a thermos in the shape of a cylinder is filled with coffee.The height of the cylinder is 12 inches and its radius is 2 inches. T
andreev551 [17]

Answer:

150.7  in^3  if using 3.14 for pi

150.8  in^3  if using the pi button

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h where r is the radius and h is the height

V = (pi) * (2)^2 * (12)

V = pi *4*12

Using the pi button on the calculator

V =150.796

This round to 150.8 in^3

If we approximate pi using 3.14

V = 3.14 *4*12

V = 150.72

This rounds to 150.7 in^3

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4 years ago
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