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:
is
times greater than
.
Step-by-step explanation:
We are given two numbers.
First number :
.
Second number :
.
In order to find how many times
is greater than
, we need to divide first number by second number.
Therefore,
÷ ![5 \times 10^{-9}](https://tex.z-dn.net/?f=5%20%5Ctimes%2010%5E%7B-9%7D)
or ![\frac{6 \times 10^{-5}}{5 \times 10^{-9}}](https://tex.z-dn.net/?f=%5Cfrac%7B6%20%5Ctimes%2010%5E%7B-5%7D%7D%7B5%20%5Ctimes%2010%5E%7B-9%7D%7D)
First we would divide 6 by 5.
On dividing 6 by 5, we get 1.2.
Now, we would divide 10^-5 by 10^-9.
In order to divide them, we can apply quotient rule of exponents
.
We get
.
Therefore,
= ![1.2 \times 10^4.](https://tex.z-dn.net/?f=1.2%20%5Ctimes%2010%5E4.)
So, we could say finally
is
times greater than
.
Hi there,
To compare we can look at the amount of (ounces)
A: 12 B:24
so as it appears B wins this part
Now price
A: $ 4.39 B:$2.79
A is relatively expensive than B
B is cheaper with more ounces
A is less ounces and relatively expensive
which one would you buy?
Since V = (4/3) * pi * R^3
If R is halved, V' will reduce by a ratio of (1/2)^3 = 1/8
So V' = (1/8)V
Answer:im pretty sure its 2 then you can watch an ad for another answer
Step-by-step explanation: