= r^-5 s^4t ^4
= s^4 t^4 / r^5
answer
answer is B, s^4 t^4 / r^5
Answer:
Step-by-step explanation:
given that we are interested in finding out the proportion of adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt.
Sample size = 765
Favour = 322
a) The population is the adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt
b) The parameter being estimated is the population proportion P of adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt.
c) point estimate for proportion = sample proporiton =
d) We can use test statistic here as for proportions we have population std deviation known.
d) Std error = 0.01785(
Test statistic Z = p difference / std error
f) when estimated p is 0.50 we get Z = -4.43
g) Is true population value was 40% then
Z = 1.17 (because proportion difference changes here)
11x11 is 121 , if that is what ur asking
Answer:
2
Step-by-step explanation:
mean = sum of data / no of data
=2+2+2+2+2/5
=10/5
=2
Answer:
To find out how many students took the exam you would add up how many students there was between each bar line.
First barline=5
Second barline=15
Third barline= 10
Fourth barline= 25
Fifth barline= 20
Last barline=15
When you add up all these numbers you get:
5+15+10+25+20+15=90
Therefore; you have <u>90 students</u> who took the math exam.