Ask question

Ask question

All categories

3 years ago

15

Is a biased sample valid

1 answer:

murzikaleks [220]3 years ago

5 0

No a biased sample is not valid

You might be interested in

A new drug store is being built at the coordinates (6, 10). Is there a street parallel to (the street) that will go to the drug

gavmur [86]

Seven cruel hours of our life

5 0

3 years ago

If you had 12 pieces of licorice to share equally among 5 people, how much licorice would each

pentagon [3]

12÷5=1.5 of licorice will each person get

7 0

3 years ago

Read 2 more answers

10x=5x2−1. Complete the square

vitfil [10]

Answer: I did the test too

4 0

2 years ago

If there are 400 cubic centimeters of a chemical in 1 liter of solution, how many cubic centimeters of water must be added to di

mars1129 [50]

$1l=1dm^3\\1dm=10cm\to1dm^3=(10cm)^3=1000cm^3\\\\1l=1000cm^3\\-------------\\ \begin{array}{ccc}400cm^3&-&25\%\\1000cm^3+x&-&100\%\end{array}\\cross\ multiply\\25(1000+x)=400\times100\\25000+25x=40000\ \ \ \ \ |subtract\ 25000\ from\ both\ sides\\25x=15000\ \ \ \ |divide\ both\ sides\ by\ 25\\\boxed{x=600\ (cm^3)}\\\\Answer:Must\ be\ added\ 600cm^3\ of\ water.$

5 0

3 years ago

Which numbers are a distance of 2 units from 8 on a number line?

AlladinOne [14]

Step-by-step explanation:

0 10

0-6

this is the answer. I am sure

4 0

3 years ago