The circumference of a circle is 16 ft. what is the radius? .

Imagine that you have entered the following distribution of scores into the program: 7, 9, 6, 3, 7, 8, 4, 10, 7, 9. The mean of

ozzi

Answer:

3

Step-by-step explanation:

Mean refers to the average value of the set of data.

It is the central value of the set of data.

Another word for Mean is average.

Given scores:7, 9, 6, 3, 7, 8, 4, 10, 7, 9

Solution:

Sum of observations = $7+ 9+ 6+ 3+ 7+ 8+ 4+ 10+ 7+ 9=70$

Number of observations = 10

Mean = Sum of observations/Number of observations = $\frac{70}{10}=7$

If observation 3 is removed:

Sum of observations = $7+ 9+ 6+ 7+ 8+ 4+ 10+ 7+ 9=67$

Number of observations = 9

Mean = Sum of observations/Number of observations = $\frac{67}{9}=7.44$

If observation 4 is removed:

Sum of observations = $7+ 9+ 6+ 3+ 7+ 8+ 10+ 7+ 9=66$

Number of observations = 9

Mean = $\frac{66}{9}=7.3$

If observation 6 is removed:

Sum of observations = $7+ 9+ 3+ 7+ 8+ 4+ 10+ 7+ 9=64$

Number of observations = 9

Mean = $\frac{64}{9}=7.1$

If observation 7 is removed:

Sum of observations = $9+ 6+ 3+ 8+ 4+ 10+ 9=49$

Number of observations = 7

Mean = $\frac{49}{7}=7$

If observation 8 is removed:

Sum of observations = $7+ 9+ 6+ 3+ 7+ 4+ 10+ 7+ 9=62$

Number of observations = 9

Mean = $\frac{62}{9}=6.9$

If observation 9 is removed:

Sum of observations = $7+ 6+ 3+ 7+ 8+ 4+ 10+ 7=52$

Number of observations = 8

Mean = $\frac{52}{8}=6.5$

If observation 10 is removed:

Sum of observations = $7+ 9+ 6+ 3+ 7+ 8+ 4+ 7+ 9=60$

Number of observations = 9

Mean = $\frac{60}{9}=6.7$

Therefore, mean of this distribution of scores would be changed the most if a score 3 was removed from the data set.

6 0

4 years ago

Use the drop-down menus to complete each equation so the statement about its solution is true?

SashulF [63]

5 - 4 + 7x + 1 = 7x + (5 - 4 + 1) = 7x + 2

NO SOLUTIONS:

5 - 4 + 7x + 1 = 7x + a (a - any real number, except 2)

ONE SOLUTION:

5 - 4 + 7x + 1 = bx + c (b - any real number, except 7, c - any real number)

INFINITELY MANY SOLUTIONS:

5 - 4 + 7x + 1 = 7x + 2

Examples:

2x + 3 = 2x + 5 subtract 2x from both sides

3 = 5 FALSE (NO SOLUTIONS)

2x + 3 = x - 4 subtract x from both sides

x + 3 = -4 subtract 3 from both sides

x = -7 (ONE SOLUTION)

2x + 3 = 2x + 3 subtract 2x from both sides

3 = 3 TRUE (INFINITELY MANY SOLUTIONS)

7 0

4 years ago

a) LOOCV is not random because you fit all n possible models that leave out a single observation. k-fold CV is random because we

Daniel [21]

Answer:

1. Randomly divide the available set of observations into two

parts, a training set and a validation set or hold-out set.

2. Fit the model on the training set.

3. Use the resulting fitted model to predict the responses for the

observations in the validation set.

4. The resulting validation set error rate is typically assessed using

the MSE in the case of a quantitative response. This provides

an estimate of the test error rate.

5 0

4 years ago

Which process was used to obtain the equation shown in Step 2?

balu736 [363]

To equal the step 2, we would have to determine that 20 was our new denominator and multiply the first fraction by 5, the second by 4 and the 2 by 20.

multiplied by sides of the equation by 20

7 0

3 years ago

You can fly from Seattle to Boise for $137.50, from Boise to Witchita for $92.50 and from Witchita to Austin for $162.50. Use me

jonny [76]

That would be 392.50

6 0

3 years ago

Read 2 more answers