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2 years ago

11

The probability that an individual is left-handed is 0.16. in a class of 10 students, what is the mean and standard deviation of

the number of left-handers in the class?

1 answer:

34kurt2 years ago

6 0

0.16+678%-4635+(8886+253434+77)

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BRAINLIESTTTTT ANSWER!!!!!!!!!!!!!!!

Ksenya-84 [330]

I would say that answer B makes more sense that the others. Standard deviation are both described with College and High School. I hope this helps!

7 0

1 year ago

Factor the GCF: −6x4y5 − 15x3y2 + 9x2y3

Allushta [10]

<span>−24x<span>y^5</span>−15x×3<span>y^2</span>+9x×2<span>y<span>^3

</span></span></span><span><span>−24x<span>y<span>^5</span></span>−45x<span>y^<span>2</span></span>+9x×2<span>y^3</span></span><span>
</span><span><span>−24x<span>y<span><span>^5</span><span></span></span></span>−45x<span>y<span><span>^2</span><span></span></span></span>+18x<span>y<span>^3

Hope i helped^-^
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8 0

2 years ago

According to Eurostat, 55.2% of households in Italy have one child, the highest percentage in the Euro zone. A random sample of

Sladkaya [172]

Answer:

0.04

Step-by-step explanation:

In this case we must use the following formula to be able to find the standard error, which would be the square root, of the probability for its complement divided by the population:

SE= $\sqrt{\frac{p *(1-p)}{n} } \\$

Now, knowing that p = 0.552 and n = 160 we replace and we are left with:

SE = $\sqrt{\frac{0.552 *(1-0.552)}{160} } \\$

SE = $\sqrt{0.00154}$

SE = 0.039

Which means that the standard error of the proportion is 0.04

3 0

2 years ago

A department store is selling a denim jacket for $60. It will be on sale next week for $42. What is the percent of change in the

love history [14]

Your answer will be A; 18%

8 0

2 years ago

Read 2 more answers

A car uses 3t gallons of gasoline to travel 5 miles.

Nadusha1986 [10]

Answer: a) $\frac{24}{5}t gallons$ are needed to travel 8 miles

b) Town X and town Y are 15 miles apart.

Step-by-step explanation:

Given : Gasoline used to travel 5 miles = 3t gallons

a) To find: Gasoline used to travel 8 miles = ?

Using unitary method:

If Gasoline used to travel 5 miles = 3t gallons

Thus Gasoline used to travel 8 miles = $\frac{3t}{5}\times 8=\frac{24}{5}t gallons$

$\frac{24}{5}t gallons$ are needed to travel 8 miles

b) when 3t gallons of gasoline are used , distance covered = 5 miles

Thus when 9t gallons of gasoline are used , distance covered = $\frac{5}{3t}\times 9t=15 miles$

Thus town X and town Y are 15 miles apart.

6 0

2 years ago