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3 years ago

Math question guys!! thanks

Mathematics

1 answer:

makkiz [27]3 years ago

8 0

I hope it can help you hehehehe

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The centers for disease control and prevention reported that 25% of baby boys 6-8 months old in the united states weigh more tha

melisa1 [442]

Answer:

0.1971 ( approx )

Step-by-step explanation:

Let X represents the event of weighing more than 20 pounds,

Since, the binomial distribution formula is,

$P(x)=^nC_r p^r q^{n-r}$

Where, $^nC_r=\frac{n!}{r!(n-r)!}$

Given,

The probability of weighing more than 20 pounds, p = 25% = 0.25,

⇒ The probability of not weighing more than 20 pounds, q = 1-p = 0.75

Total number of samples, n = 16,

Hence, the probability that fewer than 3 weigh more than 20 pounds,

$P(X$

$=^{16}C_0 (0.25)^0 (0.75)^{16-0}+^{16}C_1 (0.25)^1 (0.75)^{16-1}+^{16}C_2 (0.25)^2 (0.75)^{16-2}$

$=(0.75)^{16}+16(0.25)(0.75)^{15}+120(0.25)^2(0.75)^{14}$

$=0.1971110499$

$\approx 0.1971$

3 0

3 years ago

I need help with the last two

Luba_88 [7]

.07 is what I believe the answer is

3 0

3 years ago

(07.01 MC)

Triss [41]

Answer:

Charlie's solution is incorrect.

Part A: The equation must be divided by the number next to the variable. So 5x will be divided by 5 which will equal x, and 30 will be divided by 5 which equals 6. The final answer will be x=6.

Part B: The equation will have one solution because there is only one way to solve it.

6 0

3 years ago

G(x)= -2x-7 what is g(-3) A. -13 B. -1 C. -6 D. 6

True [87]

You plug -3 into -2x-7 and you get B -1.

4 0

2 years ago

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If A = {1, 2, 4} and B = {2, 4, 6, 8, 10}, find A ∪ B.

AveGali [126]

Answer:

B) {1, 2, 4, 6, 8, 10}.

I hope this helps.

7 0

3 years ago

Read 2 more answers