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3 years ago

13

You and 19 other people are entered in a drawing. One person will be randomly selected to win a prize. What is the probability t

hat you will win the prize?

1 answer:

Novosadov [1.4K]3 years ago

4 0

Answer:

5%

Step-by-step explanation:

1 person will be selected out of a total of 20 (you + 19)

The probability is 1/20 = 0.05 = 5%

You might be interested in

Consider the pair of angles given in the first column. Use the following answers to identify each angle.

Vikki [24]

<4 and <2 corresponding angles

<6 and <3 alternate interior angles

<4 and <5 alternate exterior angles

<6 and <7 interior angles on the same side of transversal

3 0

3 years ago

Find the measure of angle FED and DEN. Thx!!!! :)

Katena32 [7]

Answer:

m<FED=60, m<DEN=120

Step-by-step explanation:

m<FED=60

This is because <GEN and <FED are vertical angles.

Vertical angles are always congruent.

Vertical angles are formed by a pair of intersecting lines, and are the angles directly across from one another.

m<DEN=120

This is because <DEN and <GEN are supplementary.

Supplementary angles add up to 180 degrees.

We know this because a straight line is always 180 degrees.

So:

m<DEN+m<GEN=180

m<DEN+60=180

m<DEN=120

6 0

3 years ago

A recent study of 26 city residents showed that the time they had lived at their present address has a mean of 10.3 years with t

svetlana [45]

Answer:

The 95% confidence interval is $9.15< \mu < 11.45$

Step-by-step explanation:

From the question we are told that

The sample size is n = 26

The mean is $\= x = 10.3$

The standard deviation is $s = 3$

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

=> $E = 1.96 * \frac{3}{\sqrt{26} }$

=> $E = 1.1532$

Generally 95% confidence interval is mathematically represented as

$\= x -E < \mu < \=x +E$

=> $10.3 -1.1532 < \mu < 10.3 + 1.1532$

=> $9.15< \mu < 11.45$

7 0

3 years ago

Which is the equation of a line with a slope of -1/3 and a y-intercept at (0,1)?

Nutka1998 [239]

Answer:

The answer is

$\huge \boxed{y = - \frac{1}{3}x + 1 }$

Step-by-step explanation:

To find an equation of a line given the slope and a point we use the formula

$y - y_1 = m(x - x_1)$

where

m is the slope

( x1 , y1) is the point

From the question the point is (0,1) and slope - 1/3

The equation is

$y - 1 = - \frac{1}{3}(x - 0) \\ y - 1 = - \frac{1}{3} x$

We have the final answer as

$y = - \frac{1}{3} x + 1 \\$

Hope this helps you

4 0

3 years ago

Read 2 more answers

A sales person at a furniture store is a 3% commission on ourselves how much commission does the sales person earn on a 1400$ sa

elena-14-01-66 [18.8K]

The sales person is making 3% so, we would simply multiply $1400 by .03

1400*.03

=$42

They made $42 dollars on a $1400 sale, pretty lousy if you ask me.

7 0

3 years ago