Answer:
C
Step-by-step explanation:
Answer:
The approximate 90% confidence interval is;
70,244 to 70,732
Step-by-step explanation:
Here, we want to calculate the approximate 90% C.I for the situation
Mathematically;
CI = mean ± (z * SD)/√n
From the question;
mean = 70,438
SD = 645.3
n = 30
we can get z from the CI table
90% CI is same as; 1.645 z-score
So , substituting these values;
CI = 70,438 ± ( 1.645 * 645.3)/√30
CI = 70,438 ± 194
So the CI = 70,438 -194 to 70,438 + 194
= 70,244 to 70,732
Answer:
20%
Step-by-step explanation:
as we add 10 +25 = 35
so if we subract 40 from 35 it is 5 so mangoes are 5
5
_ × 100 =20%
25
Answer:
x<1
Step-by-step explanation:
2x+2<2(3x-1)
2x+2<6x-2
2x<6x-4
-4x<-4
x<1
