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3 years ago

Please explain thank you

Mathematics

1 answer:

mixas84 [53]3 years ago

6 0

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Find the mean of the set of data. Use a calculator if necessary.

dangina [55]

Answer:

Step-by-step explanation:

mean is average of the numbers

add all values then divide by the numbers

(1+5+8+10+11) / 5

35 / 5 = 7

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3 years ago

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A suitcase has a lock on it consisting of three numbers. Each number could be any

Viktor [21]

Answer: 810

Step-by-step explanation:

There are 10 numbers to choose from. Since the 2nd digit and 3rd digit cannot repeat the number before it, they only have 9 numbers to choose from.

1st digit and 2nd digit and 3rd digit

10 choices x 9 choices x 9 choices = 810

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3 years ago

The price of gold rose from $790 per ounce to $860 per ounce what percent increase does this amount represent round to the neare

neonofarm [45]

There’s so many number

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3 years ago

H e l p p l e a s e ; - ;

irina1246 [14]

Answer:

9/4

Step-by-step explanation:

if you use cross multiplication you can see that it would cross eachother out and becom one plz vote brainliest

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3 years ago

The probability that a male will be colorblind is .042. Find the probabilities that in a group of 53 men, the following are true

Dvinal [7]

Answer:

See below for answers and explanations

Step-by-step explanation:

Part A

$\displaystyle P(X=x)=\binom{n}{x}p^xq^{n-x}\\\\P(X=5)=\binom{53}{5}(0.042)^5(1-0.042)^{53-5}\\\\P(X=5)=\frac{53!}{(53-5)!*5!}(0.042)^5(0.958)^{48}\\\\P(X=5)\approx0.0478$

Part B

$P(X\leq5)=P(X=1)+P(X=2)+P(X=3)+P(X=4)+P(X=5)\\\\P(X\leq5)=\binom{53}{1}(0.042)^1(1-0.042)^{53-1}+\binom{53}{2}(0.042)^2(1-0.042)^{53-2}+\binom{53}{3}(0.042)^3(1-0.042)^{53-3}+\binom{53}{4}(0.042)^4(1-0.042)^{53-4}+\binom{53}{1}(0.042)^5(1-0.042)^{53-5}\\\\P(X\leq5)\approx0.9767$

Part C

$\displaystyle P(X\geq 1)=1-P(X=0)\\\\P(X\geq1)=1-(1-0.042)^{53}\\\\P(X\geq1)\approx1-0.1029\\\\P(X\geq1)\approx0.8971$

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2 years ago