whats the equation?
i need the equation in order to solve for x
30 girls , 12 were selected
40 boys, 16 were selected
We can simplify these down by finding the Greatest Common Factor in both girls and boys:
30:12 .... 15:6 .... 1 : 2.5 30/12 .... 15/6 .... 2.5
40:16 .... 20:8 .... 1 : 2.5 OR 40/16 .... 20/8 .... 2.5
They are equal ratios because their most simplified ratios/fractions are equivalent
Answer:
Yintecept is 0
Step-by-step explanation:
because it's y= Mx+b
but this one is y = mx
Answer:
3.625
Step-by-step explanation:
Given a normal distribution :
Average weight = population mean = 172 pounds
Population standard deviation = 29 pounds
Number of samples selected(n) = 64
The standard deviation of the sample also called the standard error is the proportion of the population standard deviation to the square root of the number samples.
Sample standard deviation :
Population standard deviation /√n
= 29 /√64
= 29 / 8
= 3.625
Answer:
0.36363.....
repeating
Step-by-step explanation:
given :
total songs downloaded = 44
total favorite band songs = 16
number of favorite songs out of total songs downloaded
= total favorite band songs ÷ total songs downloaded
= 16 ÷ 44
= 0.3636363636363636363... (answer for part A)
by observation, we can see that the decimals 36 repeats over and over again and never stops. Hence we can say that the decimal is repeating (Answer for part B)
