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Angelina_Jolie [31]

2 years ago

12

The line plot below shows the heights of flowers in a garden. How much taller is the tallest flower than the shortest flower? A

line plot named A. 1 1 4 inches B. 1 3 4 inches C. 2 1 2 inches D. 4 3 4 inches

1 answer:

Elena L [17]2 years ago

6 0

Answer:

B: 1 3/4

Step-by-step explanation:

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Solve with work <br><br>24.32 ÷ 6.4

Rina8888 [55]

Answer:

3.8 is the answer plus using a calculator could have helped you too

5 0

3 years ago

Please help it’s like 2 am and this is due tomorrow

polet [3.4K]

Answer:

(2,2)

Step-by-step explanation:

try this it might work

4 0

3 years ago

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What is the measure of angle A in the triangle?

musickatia [10]

Answer:

A = 50

Step-by-step explanation:

The sum of the angles of a triangle is 180 degrees

A+B+C =180

2x-10 + 70 + x+30 = 180

Combine like terms

3x +90 = 180

Subtract 90 from each side

3x +90-90 = 180-90

3x= 90

Divide each side by 3

3x/3=90/3

x =30

We want to find A

A =2x-10

= 2*30 -10

=60-10

=50

3 0

4 years ago

Read 2 more answers

How would I work this question? x+10y= -9 and x=5y+21

MatroZZZ [7]

Answer:

what you do is you want to get the x by it self so you would subtract the x and put it on the other side. like this: 10y=-9-x. OK so you would subtract -9 and put it on the other side like this: 9 + 10y=-x. but you can't have a negative x so u would do -9 + 10y=x.

Step-by-step explanation:

8 0

4 years ago

Psychology students at Wittenberg University completed the Dental Anxiety Scale questionnaire (Psychological Reports, August 199

fredd [130]

Answer:

a) $Z = 1.43$

b) There is a 48.696% probability that someone scores between a 10 and a 15 on the Dental Anxiety Scale is

Step-by-step explanation:

Normal model problems can be solved by the zscore formula.

On a normaly distributed set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a value X is given by:

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

Each z-score value has an equivalent p-value, that represents the percentile that the value X is.

In our problem, the mean score was 11 and the standard deviation was 3.5.

So, $\mu = 11$ , $\sigma = 3.5$ .

(a) Suppose you score a 16 on the Dental Anxiety Scale. Find the z-value for this score.

What is the value of Z when $X = 16$ ?

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

$Z = \frac{16 - 11}{3.5} = 1.43$

(b) Find the probability that someone scores between a 10 and a 15 on the Dental Anxiety Scale.

We have to find the percentiles of both of these scores. This means that we have to find Z when $X = 10$ and $X = 15$ . The probability that someone scores between a 10 and a 15 is the difference between the pvalues of the z-value of X = 10 and X = 15.

When $X = 10$

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

$Z = \frac{10 - 11}{3.5} = -0.29$

Looking at the z score table, we find that the pvlaue of $Z = -0.29$ is 0.3859.

When $X = 15$

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

$Z = \frac{15 - 11}{3.5} = 1.14$

Looking at the z score table, we find that the pvlaue of $Z = 1.14$ is 0.87286.

So, the probability that someone scores between a 10 and a 15 on the Dental Anxiety Scale is

0.87286 - 0.3859 = 0.48696 = 48.696%

(c) Find the probability that someone scores above a 17 on the Dental Anxiety Scale

This probability is 100% minus the pvalue of the zvalue when $X = 17$

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

$Z = \frac{17 - 11}{3.5} = 1.71$

When $Z = 1.71$ , the pvalue is 0.95637. This means that there is a 95.637% probability that someone scores BELOW 17 on the dental anxiente scale.

100 - 95.637 = 4.363%

There is 4.363% probability that someone scores above a 17 on the Dental Anxiety Scale

4 0

3 years ago