3 years ago

Having trouble with these questions, please help.

2 answers:

7 0

The Empirical Rule affirm:

99.7 % random variable values are between
±
three standard deviation.

95 % random variable values are between
±
two standard deviation.

68 % random variable values are between
±
one standard deviation. There you go!

Liula [17]3 years ago

5 0

Answer:

(a)=50%(b)=2.1and(c)=16.1

Step-by-step explanation:

Hope this helps

You might be interested in

Starting at 7:00 a.m., Lin spent a day hiking through a canyon. This graph shows her elevation (in meters) at some different tim

ollegr [7]

Answer:

Sorry for my bad handwriting it's hard write in a computer

Step-by-step explanation:

5 0

2 years ago

Every person has blood type O, A, B, or AB. A random group of people are blood-typed, and the results are shown in the table.

vova2212 [387]

The probability that a randomly chosen person from this group has type B is 3/25

The probability that a randomly chosen person from this group has type AB is 1/25

The probability that a randomly chosen person from this group has type B or type AB blood is 4/25

8 0

3 years ago

Read 2 more answers

What the value of x 4(2x-5)=5x+4

mrs_skeptik [129]

x=8

hope this helps you

7 0

3 years ago

Read 2 more answers

You can spend no more than $100 on a party you are hosting. The cost per guest is $8. What is the greatest number of guests that

spayn [35]

Answer:

the greatest number of guests is 12 guests

Step-by-step explanation:

100÷8=12.5

3 0

3 years ago

Read 2 more answers

Tom ordered some books online and spent a total of $75. Each book cost $6 and he paid a total of $3 for shipping. How many books

BaLLatris [955]

Answer:

_b+_=_

6B+3=75

He ordered 12 books

Step-by-step explanation:

so each book (b) costs $6. he payed $75 total including the $3 shipping price

That gets us:

6b+3=75

6b=72

b=12

Therefore, Tom ordered 12 books

5 0

3 years ago