The following two-way frequency table shows information collected from a survey of

Mathematics

1 answer:

Novay_Z [31]3 years ago

3 0

Answer:

0.62

Step-by-step explanation:

In the picture attached, the table is shown.

We want to find the probability that a student uses the Internet, given that he or she is in eighth grade. Mathematically:

P(Internet | eighth grade) = P(Internet ∩ eighth grade)/P(eighth grade)

P(Internet | eighth grade) = (8/28)/(13/28) = 8/13 = 0.62

You might be interested in

Solve the equation without the use of a calculator. please Help!!! Thank you!!!<br> 5=2x^2+3

Olin [163]

Solving for X.

5 = 2x^2 + 3 Subtract 3 from both sides.

2 = 2x^2 Divide by 2 on both sides.

1 = x^2 Take the square root of both sides.

X = 1

8 0

3 years ago

A fixed cost: Multiple Choice Requires the future outlay of cash and is relevant for future decision making. Does not change wit

Charra [1.4K]

Answer:

A fixed cost: Does not change with changes in the volume of activity within the relevant range

Step-by-step explanation:

Fixed Cost:

In economics, a fixed cost in a specified period of time does not change with respect to an increase or decrease in the production of goods or services. In contrast, the variable cost changes in proportion to changes in production of goods or services.

Examples of Fixed Cost:

Salaries, Rents, insurance payments, taxes, some utilities etc

7 0

3 years ago

Read 2 more answers

For a group of 100 people, compute(a) the expected number of days of the year that are birthdays of exactly 3 people.(b) the exp

Scilla [17]

Answer:

Step-by-step explanation:

Leaving leap years, a year contains 365 days.

For a group of 100 people, each person is independent of the other and probability of any day being his birthday has a chance of

$\frac{1}{365}$