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Naddika [18.5K]
2 years ago
13

Fill in the blank by choosing the most appropriate word.

Mathematics
1 answer:
Zanzabum2 years ago
4 0

Answer:

accurate

Step-by-step explanation:

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10.5% of the population is 65 or older. Find the probability that the following number of persons selected at random from 25 peo
julia-pushkina [17]

Given:

The sample size n=25

Probability of population is 65 or older is 10.5%.

This date follows the binomial distribution,

\begin{gathered} n=25,p=0.105 \\ X\rightarrow B(n=25,p=0.105) \end{gathered}

To find the probability that at most 2 are 65 or older,

\begin{gathered} P(X=x)=^nC_x(p)^x(1-p)^{n-x} \\ P(0\leq X\leq2)=P(X=0)+P(X=1)+P(X=2) \\ =^{25}C_0(0.105)^0(1-0.105)^{25-0}+^{25}C_1(0.105)^1(1-0.105)^{25-1}+^{25}C_2(0.105)^2(1-0.105)^{25-2} \\ =0.0625+0.1832+0.2579 \\ =0.5036 \\ \approx0.504 \end{gathered}

Answer: Probability is 0.504 .

8 0
1 year ago
Drisen has 6 groups of trains. Each group has 3 trains in it. What addition number sentence would help him solve how many trains
Nimfa-mama [501]

Answer:

6x3=x

x=18

Step-by-step explanation: plzz mark brainliest

4 0
3 years ago
11/12 - (-10) - 5/6 as a single rational number
Harlamova29_29 [7]

Answer:

121/12

Step-by-step explanation:

1. 11/12 - (-10) = 11/12+10 = 131/12

2. 131/12-5/6 = 131/12 - 10/12 = 121/12

7 0
3 years ago
***no links please***
prisoha [69]

Answer:

3(pi)

Step-by-step explanation:

8.33 (repeating 33) is 8.333333...

3(pi) = 9.42477796...

17/2 = 8.5

sqrt(64) = 8

Answer: 3(pi)

4 0
3 years ago
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Hellohello, if you able to help me then please do. (:
timurjin [86]

Answer:

g=12

Step-by-step explanation:

3 + g = 15

g = 15-3

g = 12

5 0
2 years ago
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