All categories

3 years ago

HELP AND WHO WANTS TO CHAT

Mathematics

2 answers:

netineya [11]3 years ago

7 0

Answer:

less than half

Step-by-step explanation:

elena-14-01-66 [18.8K]3 years ago

6 0

Answer:

Less than half.

Step-by-step explanation:

Half is 50%. 13% is less than 50%, so 13% is less than half. Also, for the next questions you have, any percent above 50% will be more than half, while any percent less than 50% will be less than half.

Hope this helps! Have a nice day c:

You might be interested in

The area of a rectangle is 44m2.The length is 3 2/3. the width is x find the missing length

zimovet [89]

A = lw
44 = 3 2/3 w
w = 44 / (3 2/3)
w = 12

5 0

3 years ago

What is the area of the pool?

IRISSAK [1]

The area is 336 is you multiply the outer numbers then subtract the numbers on the in side that's what you get

4 0

3 years ago

NOT GRADED. FIND THE MEASURE OF THE INDICATER ANGLE IN EACH TRIANGLE.

Dennis_Churaev [7]

If it’s not graded does it really matter but it’s 4042 I think

3 0

3 years ago

5. X is a normally distributed random variable with a mean of 8 and a standard deviation of 4. This can be written as N(8,4). Th

xz_007 [3.2K]

Answer:

The probability that X is between 1.48 and 15.56 is $P(1.48 \leq X \leq 15.56) = 0.919$

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

X is a normally distributed random variable with a mean of 8 and a standard deviation of 4.

This means that $\mu = 8, \sigma = 4$

The probability that X is between 1.48 and 15.56

This is the pvalue of Z when X = 15.56 subtracted by the pvalue of Z when X = 1.48. So

X = 15.56

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{15.56 - 8}{4}$

$Z = 1.89$

$Z = 1.89$ has a pvalue of 0.9706

X = 1.48

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{1.48 - 8}{4}$

$Z = -1.63$

$Z = -1.63$ has a pvalue of 0.0516

0.9706 - 0.0516 = 0.919

Write out the probability notation for this question.

$P(1.48 \leq X \leq 15.56) = 0.919$

The probability that X is between 1.48 and 15.56 is $P(1.48 \leq X \leq 15.56) = 0.919$

5 0

3 years ago

A plane has 360 total seats which are divided into economy class and business class for every 13 seats in economy class there ar

Marta_Voda [28]

Answer:

There are 260 seats in economy class and 100 seats in business class

Step-by-step explanation:

To solve this problem we first have to calculate the fraction of economic and business seats with respect to the total

We are told that every 13 seats in economy class there are 5 seats in business class

13 + 5 = 18

This means that if there are 18 seats 13 will be economic and 5 business

economic seats = 13/18

business seats = 5/18

To find out the number of seats in the airplane of each class, we have to multiply the total number of seats by these fractions

economic seats = 360 * 13/18

economic seats = 260

business seats = 360 * 5/18

business seats = 100

8 0

3 years ago