3 years ago

Help please, the question's on the attachment.

1 answer:

7 0

I believe it is answer choice 1

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marysya [2.9K]

2 1/6 ÷ 7/8= 2 10/21 h
hope this helps!

8 0

3 years ago

Ganezh [65]

Answer:

Completing the experiment a few more times and combining the results to the trails already done.

8 0

3 years ago

nydimaria [60]

mere ko question samjh nahi aaya... plz ek baar phir se likho

3 0

3 years ago

alekssr [168]

We have:

$p-3\frac{1}{5} =7\frac{1}{3} => p=7\frac{1}{3}+3\frac{1}{5}= 10\frac{8}{15}$

ok done. Thank to me :>

7 0

2 years ago

shusha [124]

Answer:

0.6535

Step-by-step explanation:

Given that during a one-hour period twenty-five customers buy gasoline at this station.

Let X be the no of persons out of these 25 who pay by cash.

X has two outcomes and each trial is independent of other.

Hence X is binomial (n=25, p=0.40)

Required probability

= $P(X\geq 10)\\=P(10)+P(11)+...+P(25)\\=\Sigma_{10}^{25} 25Cr (0.4)^r (1-0.4)^{25-r}$

=0.6535

7 0

3 years ago