Answer:
44.040192
Step-by-step explanation:
I barely remember doing this in math. I did some research on the question and that's the answer that I got. If I'm not wrong, the formula you are supposed to use is:
y = a(r)^t
A being the regular number in the problem (210).
R is the rate/ ratio (8% which would be converted to 0.8).
T is the time (7 years).
Put the equation together, and you get y = 210(0.8)^7. When you plug it into a calculator, you get 44.040192.
Sorry for the long explanation, but I hope this helps you solve your problem!
If the probabilities of A, B, and A or B are 0.4, 0.26, and 0.436. Then the probability of A and B will be 0.224.
<h3>What is the addition rule of size for two subsets?</h3>
For two subsets A and B of the universal set U, we have:
P(A ∪ B) = P(A) + P(B) - P(A ∩ B)
Then the expression can be written as
P(A ∩ B) = P(A) + P(B) - P(A ∪ B)
The probabilities are given below.
P(A) = 0.4
P(B)=0.26
P(A ∪ B) = 0.436
Then the probability of A and B will be
P(A ∩ B) = P(A) + P(B) - P(A ∪ B)
P(A ∩ B) = 0.4 + 0.26 - 0.436
P(A ∩ B) = 0.66 - 0.436
P(A ∩ B) = 0.224
Learn more about the addition rule for two subsets here:
brainly.com/question/27496136
SPJ1
Answer:
8N-2=33+N
Step-by-step explanation:
Answer:
Step-by-step explanation:
given that the following data represent the discrete probability distribution for the number of stars that reviewers have a first edition statistics reference book.
Stars 5 4 3 2 1
Probability 25% 35% 20% 10% 10%
H0: Second edition is as per the above probabilities
Ha: atleast one is different from the above probability
(two tailed chi square test)
Alpha = 0.025
Assuming H0 to be true we calculate expected frequencies for total 80
chi square calculatons are shown below
df = 4
5 4 3 2 1 Total
Observed 28 28 13 6 5 80
Expected 20 28 16 8 8 80
chi square
(O_E)^2/E 3.2 0 0.5625 0.5 1.125 5.3875
p value =0.1455
Since p value >0.025, we accept H0
The expected requency of three-star reviews is ________.16
Answer:
it is similar- this ~ squiggly thing means similar
Step-by-step explanation:
the scale is 3 so x=3.8*3 which is <u>11.4</u>
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hope this helped
