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3 years ago

20 question ach containing three answers quiz probability of getting no points? worksheet

1 answer:

5 0

The probability of getting no points on any given question is 2/3, so for 20 independent questions, it is (2/3)^20 ≈ 3.007*10^-4.

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A dependent system of equations is a system with __________.

andre [41]

The same line is written in two different forms

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2 years ago

What is 4 times 31 in distributive property

Aleksandr [31]

Answer:

4(30 +1)= 4(30) + 4(1)

Step-by-step explanation:

The property states a(b+c)= ab+ac.

30 and 1 equals 31, then you just plug the two numbers into the equation.

4 0

3 years ago

Write the equation of a line with slope m=6 and including point (0,1).

Orlov [11]

Answer:

the equation of the line is y=6x+1

hope you have a great day! hope this helped :D

3 0

3 years ago

Suppose your friends have the following ice cream flavor preferences: 70% of your friends like chocolate (C). The remaining do n

tekilochka [14]

Answer:

The proportion of this group that likes chocolate is 0.625.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Likes sprinkles

Event B: Likes chocolate

25% of your friends who like Chocolate (C) also like sprinkles (S).

This means that $P(A \cap B) = 0.25$

40% of your friends like sprinkles (S) topping.

This means that $P(A) = 0.4$

Of the friends who like sprinkles, what proportion of this group likes chocolate

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.25}{0.4} = 0.625$

The proportion of this group that likes chocolate is 0.625.

5 0

2 years ago

A garage is drawn using a scale of 2 2/3 inch =6feet if the actual height is 68 ft what is the height of the garage

butalik [34]

Answer:

Step-by-step explanation:

The drawing of the garage is a smaller representation of the actual garage. A garage is drawn using a scale of 2 2/3 inch = 6feet. Let us first convert 2 2/3 inch to improper fraction. It becomes 8/3 inch.

Let us determine the unit measurement.

If 6feet = 8/3 inch,

1 foot will be 8/3 ÷ 6 = 8/3×1/6

= 8/18 inches. Therefore

if the actual height is 68 ft , then, the height of the garage on the drawing will be

68 × 8/18 = 272/9 = 30 2/9 inches

3 0

3 years ago