Answer:
To find probability, divide the number of times an event happens by the number of trials.
4 pages Elena = 5 pages Jada
To figure out how many pages Jada reads if Elena reads 1, divide 5 by 4: 1.25. This means that for every 1 page Elena reads, Jada reads 1.25 pages.
So if Elena reads 9 pages, multiply 1.25 by 9: 11.25 pages that Jada reads.
For S pages read by Elena, this is a variable, so I’m assuming it means for every S pages, Jada reads 1.25S
Answer:
p value from chi square = 0.081
Step-by-step explanation:
Given that sociologists say the percentage of the classic music lovers is about 5%. From the survey, we know that only 83 out of 2000 people listen to the classic music. Let denote the proportion of the classic music lovers. The hypotheses are H0: p=0.05 vs Ha: p≠0.05
p value = 0.09
Instead of this if we do chi square
H0: Proportion of music lovers is 5% and non music lovers is 95%
Ha: Proportions are not as per the estimate
(Two tailed chi square test)
Observed 83 1917 2000
Expected 100 1900 2000
O-E -17 17 0
chi square
(O-E)^2/E 2.89 0.1521 3.0421
df =1
p value from chi square = 0.081
Though p value is not exactly the same, the conclusion in both tests are the same
Answer:
Therefore, option C is correct.
Step-by-step explanation:
We have been given the equation:
We will take LCM 4 on right hand side of the above equation:
Now, we will multiply the 4 in denominator on right hand side to the y in left hand side pof the equation we get:
After rearranging the terms we get:
Therefore, option C is correct.
Answer:
D. 3
Step-by-step explanation:
If the ratio of their sides is 4:1, and if PQ=12 inches, then Ab=12/4=3 inches.
