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3 years ago

5

the table shows the value of a savings bond that doubles in value after 5 years. Which statement describes the bond

1 answer:

beks73 [17]3 years ago

8 0

I think its the first option maybe im not sure

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Alma caught a large-mouth bass that measured 17½ in. long. Her father caught one 14½ in. long. How much longer was Alma's fish t

astraxan [27]

Answer:

3 feet

Step-by-step explanation:

3 0

3 years ago

What does 74.8-34.62=?

Fudgin [204]

The answer to your question is 40.18

7 0

3 years ago

In a data distribution, the first quartile, the median and the means are 30.8, 48.5 and 42.0

kolbaska11 [484]

Answer:

$Q_3 = 56.45$ --- The third quartile

$Var = 370.18$ -- Variance

Step-by-step explanation:

Given

$Q_1 = 30.8$ -- First quartile

$Q_2 = 48.5$ --- Median

$\bar x = 42$ --- Mean

$Skp = -0.38$ --- Coefficient of skewness

Solving (9): The third quartile $Q_3$

This is calculated from

$Skp = \frac{Q_1 + Q_3 - 2Q_2}{Q_3 - Q_1}$

So, we have:

$-0.38 = \frac{30.8 + Q_3- 2*48.5}{Q_3 - 30.8}$

Cross Multiply

$-0.38 (Q_3 - 30.8)= 30.8 + Q_3- 2*48.5$

Open bracket

$-0.38Q_3 + 11.704= 30.8 + Q_3- 97.0$

Collect like terms

$-0.38Q_3 -Q_3= 30.8 - 97.0- 11.704$

$-1.38Q_3= -77.904$

Divide both sides -1.38

$Q_3 = \frac{-77.904}{-1.38}$

$Q_3 = 56.45$ --- approximated

Solving (b): The variance

First, calculate the standard deviation from:

$3IQR = 4SD$

$IQR= Q_3 - Q_1$

So:

$3IQR = 4SD$

$3(Q_3 - Q_1) = 4SD$

Make SD the subject

$SD = \frac{3}{4}(Q_3 - Q_1)$

$SD = \frac{3}{4}(56.45 - 30.8)$

$SD = \frac{3}{4}*25.65$

$SD = \frac{3*25.65}{4}$

$SD = \frac{76.95}{4}$

$SD = 19.24$

So, the variance is:

$Var = SD^2$

$Var = 19.24^2$

$Var = 370.18$

5 0

3 years ago

Number 9 and 10 I Need help please

Anastaziya [24]

9. I assume the outlier is the asterisk, which appears to be around 4. An outlier is a piece of data that is far from other values.
10. 50%. The definition of the median is that half of the values are above it, and half are below.

Any questions?

5 0

3 years ago

Read 2 more answers

Can the numbers 24, 32, 42, be the lengths of the three sides of the right triangle? Explain why or why not

Musya8 [376]

No the don't add up to one eighty I'm pretty sure if not tell me

8 0

3 years ago