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3 years ago

How do you evaluate expression in the combination rule: how do you solve 11 C 5

Mathematics

1 answer:

Tema [17]3 years ago

3 0

$\bf \left. \right._nC_r=\cfrac{n!}{r!(n-r)!}\implies \left. \right._{11}C_5=\cfrac{11!}{5!(11-5)!}$

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Reptile [31]

Answer:

c.) 7.5

Step-by-step explanation:

There is a part-to-whole relationship here.

2 customers : 8 minutes= ? customers : 30 minutes

2/8=x/30

Cross multiply:

8x=60

Divided both sides by 8:

x=60/8=7.5

I hope this helps!

8 0

3 years ago

The Office of Student Services at a large western state university maintains information on the study habits of its full-time st

Rudiy27

Answer: The standard error of the mean = 0.5

Step-by-step explanation:

Given : Sample size : n = 144

Standard deviation : $\sigma=6\text{ hours}$

The formula to find the standard error of the mean is given by :-

$S.E.=\dfrac{\sigma}{\sqrt{n}}$

i.e. $S.E.=\dfrac{6}{\sqrt{144}}=0.5$

Hence, the standard error of the mean =0.5

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3 years ago

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Scorpion4ik [409]

Answer:

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Step-by-step explanation:

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3 years ago

What is rational number and arithmetic number

Oduvanchick [21]

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Here, “p” is a numerator and “q” is a denominator. The examples of rational numbers are 6/5, 10/7, and so on. The rational number is represented using the letter “Q”. Like real numbers, the arithmetic operations, such as addition, subtraction, multiplication, and division are applicable to the rational numbers.

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3 years ago

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d1i1m1o1n [39]

Answer:

105

Step-by-step explanation:

500 goes into 100, 5 times

21 times 5 is 105

So 21/100 is equal to 105/500

Or you can do

500*0.21=105

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3 years ago

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