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2 years ago

2. Every month, Jenny and Gopal ________ the orphanages in China. They have been to five orphanages so far.

Mathematics

2 answers:

aleksandr82 [10.1K]2 years ago

6 0

Answer:

2. A

3. B

4. B

5. B

6. C

7. C

8. B

9. D

10. C

Masteriza [31]2 years ago

4 0

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An analyst wants to include the level of education to a regression model. The level of education has 4 possible values: HS, BS,

ruslelena [56]

Answer:

Three.

Step-by-step explanation:

An analyst wants to include Level of Education in a regression model.

Level of Education has 4 possible values - HS, BS, MS, PHD

How many dummy variables must the analyst add to the regression model, in order to account for the variable LEVEL OF EDUCATION?

Since LOE has 4 possible values, (4 - 1 = 3) dummy variables will be added to the regression model.

If the dummy letter is M for instance, and 1 represents the presence of a particular LOE and 0 represents the absence of that LOE;

M1 = 1 when LOE is HS but =0 when LOE is otherwise

M2 = 1 when LOE is BS but =0 when LOE is otherwise

M3 = 1 when LOE is MS but =0 when LOE is otherwise

So, when M1, M2, M3 are equal to 0, the PHD value is represented.

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2 years ago

A chef has 14 brands of hot sauce. In how many ways can the chef pick 3 to mix into a gumbo

Sloan [31]

Answer:

364ways

Step-by-step explanation

This is a problem on combination. Combination has to do with selection. For example if r objects are to be selected from a pool of n objects, this can be done in nCr ways.

nCr = n!/(n-r)!r!

If a brand has 14brands of hot sauce and he is to pick 3 to mix into a gumbo, he can select those 3 from a pool of 14brands in 14C3 number of ways.

14C3 = 14!/(14-3)!3!

14C3 = 14!/11!3!

14C3 = 14×13×12×11!/11!×6

14C3 = 14×13×12/6

14C3 = 14×26

14C3 = 364ways

8 0

2 years ago

It is computed that when a basketball player shoots a free throw, the odds in favor of his making it are 2020 to 99. Find the p

dolphi86 [110]

Answer:

Step-by-step explanation:

Given that when a basketball player shoots a free throw, the odds in favor of his making it are 2020 to 99.

Prob that he shoots a free throw = $\frac{99}{2020+99} =0.04672$

a) Probability that when this basketball player shoots a free throw, he misses it=1-0.04672 = 0.95328

b) When no of throws = 100 average of throws he makes is

Since x no of throws he makes has two outcomes and each trial is independent , X is binomial with n =100 and p = 0.04672

Expected value of throws = np = 4.672

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2 years ago

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-4 + -7 (-2) =? Minus equations always give me trouble :/

USPshnik [31]

<span>-4 + -7 (-2)
= -4 + 14 (a negative multiplies a negative equal positive)
= 10</span>

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2 years ago

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1.62 divided by 0.27

Snezhnost [94]

Answer:

The answer is 6

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2 years ago

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