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3 years ago

What percent of village women took 48 and 56 minutes to collect of water?

Mathematics

2 answers:

zalisa [80]3 years ago

5 0

The answer would be 50%

lbvjy [14]3 years ago

5 0

The answer is 50......................................

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laiz [17]

Answer:

B) 0.02

Step-by-step explanation:

<u>Use the Binomial Theorem</u>

$\displaystyle P(X=x)=\binom{n}{x}p^xq^{n-x}\\\\P(X=4)=\binom{30}{4}(0.30)^4(1-0.30)^{30-4}\\\\P(X=4)=\frac{30!}{4!(30-4)!}(0.30)^4(0.70)^{26}\\ \\P(X=4)=\frac{30!}{4!(26)!}(0.30)^4(0.70)^{26}\\ \\P(X=4)=\frac{30*29*28*27}{4*3*2*1}(0.30)^4(0.70)^{26}\\ \\P(X=4)=27405(0.30)^4(0.70)^{26}\\\\P(X=4)\approx0.0208$

We have the probability of success, $p=0.30$ , and the probability of failure, $q=1-0.30=0.70$ . The binomial coefficient, $\binom{n}{k}$ , represents the amount of possible combinations that $k$ items can be chosen out of $n$ items, with its respective formula $\frac{n!}{k!(n-k)!}$ .

Hence, the best choice for the probability that 4 students chosen at random from the class of 30 that want the next test to be on Monday will be option B, 0.02

7 0

2 years ago

What is the answer to this question???

Valentin [98]

Answer:

12/7

Step-by-step explanation:

Make 5 1/7 into improper fraction

(5×7)+1= 36/7

Then make 3 as a fraction

3/1

Divide

36÷3

7÷1

8 0

3 years ago

N–2=10n+4/2 what is the value of n need help asap

MakcuM [25]

N - 2 = 10n + 4/2

-2 = 9n + 4/2

-4/4 = 9n

-1 = 9n

-9 = n

N is -9.

If this answer is right please leave a thanks and a rating. :)

4 0

3 years ago

How many calories u will burn in 1 minute while biking

IrinaK [193]

Answer: 255 calories hope this helps :)

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Confused on number 10. I put one solution, but I don’t know if it’s right. I got

egoroff_w [7]

It is no answer, because when you get 12x + 48 = 48 + 12x, they cancel each other out.

8 0

3 years ago