All categories

3 years ago

Find the standard deviation for the given sample data. Round your answer to one more decimal place than the original data.

Mathematics

1 answer:

Aleks [24]3 years ago

6 0

Answer:

D) Standard deviation is 5.41

Step-by-step explanation:

We are given

count N = 9

Sum ∑xi = 113

Mean = ∑xi /N = 12.55

Standard deviation = $\sqrt{ \frac{(summation xi-mean)^2}{N} - (mean)^2 }$ where i = 1 to 9

upon substituting the values we get

Standard deviation = $\sqrt{29.277}$ = 5.41

You might be interested in

Jim's work evaluating 2 (three-fifths) cubed is shown below. 2 (three-fifths) cubed = 2 (StartFraction 3 cubed Over 5 EndFractio

sammy [17]

Answer:

Jim's error is " He did not multiply Three-fifths by 2 before applying the power "

Step-by-step explanation:

Jim's evaluating expression is $2(\frac{3}{5})^3$

To verify Jim's error :

Jim's steps are

$2(\frac{3}{5})^3$

$=2(\frac{3^3}{5})$

$=2(\frac{3\times 3\times 3}{5})$

$=2(\frac{27}{5})$

$=\frac{54}{5}$

Therefore $2(\frac{3}{5})^3=\frac{54}{5}$

Jim's error is " He did not multiply Three-fifths by 2 before applying the power "

That is the corrected steps are

$2(\frac{3}{5})^3$

$=2(\frac{3^3}{5^3})$ ( using the property $(\frac{a}{b})^m=\frac{a^m}{b^m}$ )

$=2(\frac{3\times 3\times 3}{5\times 5\times 5})$

$=2(\frac{27}{125})$

$=\frac{54}{125}$

$2(\frac{3}{5})^3=\frac{54}{125}$

6 0

3 years ago

Read 2 more answers

Your friend Alex has won a scholarship to study abroad. (Congratulations!) Alex has only 8 weeks to earn enough money to buy a p

Vesnalui [34]

What’s the question?

Step-by-step explanation:

6 0

3 years ago

Whats the answer to this problem???? the product of 6 and a number p is 24

Ad libitum [116K]

Well the P should probably be 4

7 0

3 years ago

On a number line what is the distance between -3/7 and -2/3 ?

san4es73 [151]

You could make the numbers have a common denominator.
-3/7 --> -9/21
-2/3 --> -14/21
|-14/21| - |-9/21| = 5/21 difference.

5/21 is the distance.

3 0

3 years ago

If 150g of sugar is used for 5 cakes How much is used for 7 cakes?:)

KIM [24]

Well, if 150 grams is used for 5 cakes, we can divide that.
150/5=30. 30 grams of sugar are used for each cake
You want to know how many grams for 7 cakes
30x7=210 grams of sugar are used for seven cakes.
Hope this helps!

3 0

4 years ago

Read 2 more answers