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Svetllana [295]
3 years ago
11

What is the probability that out of 125 babies born, at least 70 will be girls?

Mathematics
1 answer:
mote1985 [20]3 years ago
3 0

Answer:

Well just looking at the choices can lead you to the answer right away.

Well since the probability of boys and girls are equal, its 50/50. And since 125 in half well about is about 60-62 and the minimum amount of girls has to be 70. It can’t be higher then half and the choices remain to less then half not including 50%. So that eliminates all 3 choices except B.

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Step-by-step explanation:

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Answer:

x = 55, because if you look the whole entire bar is 180° in total but you dont have to worry about that because that's not what the question is wanting you to look at, If you look really close there is a half and half on both sides so that means there is a 90° angle so you would have to take 90-35 and that is what gives you your missing angle which is 55.

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a weight lifter can lift 550 pounds. his goal is to improve by 20% during the next year. how many pounds does he want to be able
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3 years ago
Jessica picked oranges for 2 days during school vacation. She was paid $0.45 per basket for the first 100 baskets picked each da
Mama L [17]

Answer:

$91.75

Step-by-step explanation:

Jessica is paid:

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  • $0.50 per basket for all baskets over 100 picked.

1st day:

Jessica picked 65 baskets of oranges (less than 100)

Jessica is paid 65\cdot \$0.45=\$29.25

2nd day:

Jessica picked 135 baskets of oranges (35 more than 100)

Jessica is paid 100\cdot \$0.45+35\cdot \$0.50=\$45+\$17.50=\$62.50

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4 0
4 years ago
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Dafna1 [17]

Answer:

0.2915

Step-by-step explanation:

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W = water

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->If with water, it will die with probability 0.4

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Taking sum of the above values with water and without water.

P(D) = P(W & D) +  P(W ' & D) = 0.4643

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= 0.135 /0.463

= 0.2915 ≈ 29.15%

Thus, the probability the neighbor forgot to water is 0.2915

4 0
4 years ago
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