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valkas [14]
3 years ago
11

For the normal distribution, about 68% of the observations are within 1 standard deviation of the mean, 95% within 2 standard de

viations, and about _________ within 3 standard deviations.
Mathematics
1 answer:
tamaranim1 [39]3 years ago
5 0
Iiiiiii neeeedddd toooo answererrrr
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Find the mean absolute deviation (MAD) of the data in the bar chart below. coins
xz_007 [3.2K]

Answer:

The answer is 0.8

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I need help on this and can you tell me how to solve it
Snezhnost [94]
I think the easiest way is to get a common denominator. So I will show you that way. (another way is to change it from fractions to decimals).
So at first we have:
2/5       5/8      57/100
(57/100 comes from 0.57, since it is in the hundredths place you put it over 100)
The Least Common Multiple between 5, 8, and 100 is 200
2/5 = 2x40 and 5x40 = 80/200
5/8 = 5x25 and 8x25 = 125/200
57/100 = 57x2 and 100x2 = 114/200

So the answer would be: Sunday, Wednesday, Monday
8 0
4 years ago
Helppppppppppppppppp
monitta
Domain: (-infinity, +infinity)
Range: [4,-infinity)
Vertex: (0,4)
Zeros: (0,2) and (0,-2)
Axis of symmetry: y=0
Y intercept: (0,4)
6 0
3 years ago
For which of these research situations would linear regression be the best statistical test to perform?
rjkz [21]

Answer:

C) independent variable = age

dependent variable = reaction time in milliseconds

Step-by-step explanation:

The linear regression statistical test is best used for research experiment where there is a single dependent and one independent variable whjre both variables are numeric. In the given options above, the city of residence, gender, college major and political affiliation are all possible categorical variables and age, salary, miles driven and reaction time are all numerical variables. Hence, the best situation in which to use linear regression is a test where both the independent and dependent variables are either age, salary, reaction time or miles driven.

7 0
3 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Write and solve an equa
MariettaO [177]

Answer:

<u><em>Steven is 15 and one half years old now</em></u>

Step-by-step explanation:

<u />

Linear equations

Sometimes we need to know the value of a variable in a given equation and that variable is given as a polynomial of degree 1. Solving for that variable means isolating it and replacing the other known values

Steven was 7 years old eight and one-half years ago. If we call x as the actual age of Steven, his age eight and one-half years ago was

x-8\frac{1}{2}

We know he was 7 years old then, so

x-8\frac{1}{2}=7

We need to know his actual age, so let's solve for x, adding 8\frac{1}{2} to each side of the equation

x-8\frac{1}{2}+8\frac{1}{2}=7+8\frac{1}{2}

Simplifying

x=15\frac{1}{2}

Steven is 15 and one half years old now

7 0
3 years ago
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