Quiz-Normal Distributions 1: A group of students weighs 500 US pennies. They find that the pennies have normally
distributed weights with a mean of 3.1g and a standard deviation of 0.149.

a) Sketch the normal curve for this distribution below. Label the mean and three
standard deviations above and below the mean.

b.) What percent of the pennies have a weight that lies between:

2.969 and 3.249 (i. e., within one standard deviation of the mean)?

2.829 and 3.389 (i. e., within two standard deviations of the mean)?

2.68g and 3.529 (i. e., within three standard deviations of the mean)?

C.) How many pennies have a weight that lies within

2.969 and 3.249 (i. e., within one standard deviation of the mean)?

2.829 and 3.389 (i. e., within two standard deviations of the mean)?

2.689 and 3.529 (i. e., within three standard deviations of the mean)?

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)

46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm

you are playing an adventure game on your computer. you come across a troll who won't let you pass and there is no other way to get to the other side of the river except over the bridge he is guarding.

the troll is a nerd. he takes great delight in watching people struggle with his problems. very few get them. he only gives you one chance and then he changes the puzzle. you have to solve this one.

before you are four blocks. they are numbered 11,6, -7,21.

he tells that the answer he wants is minus and between -1 and - 2. you can use +, -, ×, ÷   ( and ) as many times as you like or no times at all. you don't like the way he's looking at you, but you need to cross the bridge. what do you do?

6 students plese give brainliest