Ask question

Ask question

All categories

2 years ago

15

Row 2 : 8, 10

1 answer:

lora16 [44]2 years ago

4 0

I can only answer part A
The difference between the first and last number in row 6 is 10

To do this, you add 5 every time you move down a row, and add 2 every time you move along a row

You might be interested in

an outlier may be defined as a data point that is more than 1.5 times the interquartile range below the lower quartile or is mor

Ira Lisetskai [31]

Supposing a normal distribution, we find that:

The diameter of the smallest tree that is an outlier is of 16.36 inches.

--------------------------------

We suppose that tree diameters are normally distributed with <u>mean 8.8 inches and standard deviation 2.8 inches.</u>

<u />

In a normal distribution with mean $\mu$ and standard deviation $\sigma$ , the z-score 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, which is the percentile of X.<u> </u>

<u />

In this problem:

Mean of 8.8 inches, thus $\mu = 8.8$ .
Standard deviation of 2.8 inches, thus $\sigma = 2.8$ .

<u />

The interquartile range(IQR) is the difference between the 75th and the 25th percentile.

<u />

25th percentile:

X when Z has a p-value of 0.25, so X when Z = -0.675.

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

$-0.675 = \frac{X - 8.8}{2.8}$

$X - 8.8 = -0.675(2.8)$

$X = 6.91$

75th percentile:

X when Z has a p-value of 0.75, so X when Z = 0.675.

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

$0.675 = \frac{X - 8.8}{2.8}$

$X - 8.8 = 0.675(2.8)$

$X = 10.69$

The IQR is:

$IQR = 10.69 - 6.91 = 3.78$

What is the diameter, in inches, of the smallest tree that is an outlier?

The diameter is <u>1.5IQR above the 75th percentile</u>, thus:

$10.69 + 1.5(3.78) = 16.36$

The diameter of the smallest tree that is an outlier is of 16.36 inches.

<u />

A similar problem is given at brainly.com/question/15683591

3 0

2 years ago

How do I find the percentile of someone with a certain number of things from a dot plot data set?

dalvyx [7]

Answer:

percentile rank of x =

number of values before x 100

--------------------------------------------------- x ----------

number of total values on the dot plot 1

Step-by-step explanation:

you divide the number of values before x over the number of total values on the dot plot, and divide the quotient by 100 to get your percentile.

5 0

3 years ago

CAN SOMEONE HELP ME PLS AAAAA? Jason purchased a cell phone on sale for $100. He will pay a $25 monthly service for the line. Wr

Iteru [2.4K]

Answer:

Step-by-step explanation:

y = 25x +100

y- is the total money spent on the phone

x-is the number of months you had service

the relationship between x and y is proportional ( if x grows, y grows)

For example: after 2 months you would had payed $100 for the phone + the $25 each of the 2 months. y= 25*2 +100 = $150

5 0

2 years ago

What is 48% of 64 please give right answers only

Charra [1.4K]

Answer:

30.72

Step-by-step explanation:

7 0

3 years ago

What is the answer to 5 x 2 x 2 + 2?

Sedbober [7]

It is 22 cuz 5 * 2 is 10 and 10 * 2 IS 20 + 2=22

7 0

3 years ago

Read 2 more answers