Number one:
A=Pounds of apples
B=Pounds of oranges
0.75a + 0.89b
All I could figure out was number one, so sorry!
Answer:
C: square
Step-by-step explanation:
Look at a die and imagine that you're cutting it in half parallel to any one side. What figure would you see in the plane you just cut?
It'd be a square. Option C.
Answer:
The probability of the student will pass the quiz = .0546
Step-by-step explanation:
Given -
Total no of question = 10
If the student guesses on each question there are two outcomes true of false
the probability of guesses question correctly =
the probability of success is (p) =
the probability of guesses question incorrectly =
the probability of failure is (q) = 1- p =
If the student guesses on each question he must answered at least 8 question correctly
the probability of the student will pass the quiz =
= P(X = 8 ) + P(X = 9) + P(X = 10 )
=
=
=
=
= .0546
Answer:
And using the property of symmetry for the confidence interval we can estimate the sample proportion with this formula:
The final answer for this case would be:
So approximately 15% of teenagers have a sibling.
Step-by-step explanation:
For this case we assume that the proportion of interest is who represent the number of teenagers who have a sibling and in order to estimate this proportion we can conduct a confidence interval.
The confidence interval for the mean is given by the following formula:
And for this case the confidence interval is given by:
And using the property of symmetry for the confidence interval we can estimate the sample proportion with this formula:
The final answer for this case would be:
So approximately 15% of teenagers have a sibling.
Yep! That's exactly what it means, 3 times whatever the value of x is.