Answer:
Below
Step-by-step explanation:
<u>Part A: </u>
<u></u>
Like Pasta / Like Rice: A = 20
Like Rice / Do not like Pasta: B = 60
Total: C = 80
Do not like rice / Like Pasta: D = 40
Do not like rice & Pasta: E = 80
Total F = 120
Total G = 60
Total H = 140
Total I = 200
Part B: Using the rule of three:
If 200 represents 100%, then how much 80 represents?
(80 * 100) / 200 = 40%
40% did not like pasta nor rice.
Part C:
From the survey we know that:
30% like rice, and 20% dislike pasta. So yes, the survey reveals a greater dislike for rice.
Answer:
0.99379
Step-by-step explanation:
The first thing to do here is to calculate the z-score
mathematically;
z-score = x-mean/SD/√(n)
From the question x = 9.5 ,
mean = 9, SD = 2 and n = 100
Plugging the values we have;
z-score = (9.5-9)/2/√(100) = 0.5/2/10 = 0.5/0.2 = 2.5
So the probability we want to calculate is;
P(z<2.5)
We use the standard table for this
and that equals 0.99379
Answer:
5
Step-by-step explanation:
the degree is 5
As degree means the largest exponent of a term
Answer:
15 points
Step-by-step explanation:
Only a guess but 69.5 7
9
