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3 years ago

Why is the table not a probability distribution table?

Mathematics

1 answer:

jeyben [28]3 years ago

8 0

Using probability distribution concepts, the correct option is:

C. the sum of the probabilities is not 1.00

In a probability distribution, the sum of all probabilities has to be equals to 1.

In this problem, the probabilities are: 0.25, 0.45, 0, 0.35.

Their sum is:

$0.25 + 0.45 + 0 + 0.35 = 1.05$

Since the sum is not 1, the correct option is:

C. the sum of the probabilities is not 1.00

For more on probability distribution concepts, you can check brainly.com/question/24802582

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George bought 7.5 cases of pancake mix for his diner. A case contains 12 1.3-pound boxes. How many pounds of pancake mix did Geo

lions [1.4K]

First step

12 x 1.3

Second step

15.6 x 7.5

The answer is 117 :)

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3 years ago

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At RSM summer camp 100 students had enough food for a 30-days stay. After 2 days 40 new students joined the camp. After that 2 w

omeli [17]

Answer:

"no additional days of food need to be ordered."

Step-by-step explanation:

Suppose initial quantity of food is x units

Assuming each student eats 1 unit of food per day,

x = 30 * 100 = 3000 units of food

In 2 days, food eaten:

100 * 1 * 2 = 200 units

So food left after 2 days is 3000 - 200 = 2800 units

Now, there are 140 students. They stay 2 weeks (14 days) - 2 = 12 more days

So food eaten in 12 days:

140 * 1 * 12 = 1680 units

THus, after total 14 days gone, the amount of food left is:

2800 - 1680 = 1120 units

Half students left, so there are 70 students left for the last 16 days. How much food would they need?

70 * 1 * 16 = 1120 units

And there are exactly 1120 units left. So, no additional days of food need to be ordered.

6 0

3 years ago

Solve x/10 = –7. A. x = –0.7 B. x= –17 C. x = –70 D. x = 3

konstantin123 [22]

$\frac{x}{10}$ = -7 Multiply both sides by 10
x = -70

C. x = -70

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3 years ago

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A line passes through the point (-4,-5) and had a slope of 5/2. Write an equation in slope-intercept form

daser333 [38]

Step-by-step explanation:

as we have a point and the slope, we can start with the point-slope form and then transform.

the point-slope form is

y - y1 = a(x - x1)

(x1, y1) being a point on the line, a being the slope.

the slope-interceot form is

y = ax + b

a being the slope again, b being the y-intercept (the y value for x = 0).

so, we have

y - -5 = 5/2 × (x - -4)

y + 5 = 5/2 × (x + 4) = 5x/2 + 5×4/2 = 5x/2 + 10

y = 5x/2 + 5

y = (5/2)x + 5

and this is already the slope-intercept form. all done.

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2 years ago

the coordinates of a pentagon ABCDE are A(-5,4),B (1,4),C(1,-1), D(-2,-5) and E(-5,-1) what is the perimeter of the pentagon

kogti [31]

Perimeter is a continuous line forming the boundary of a closed geometrical figure. perimeter of a pentagon = AB+BC+CD+DE+EA (that is 5 sided figure)
so my plan is easy but effective, calculate all those distances using those coordinates with the aid of distance formular. then you add those distances algebraically .

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3 years ago

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