Answer: 55 can not be considered a significantly high number of girls.
The probability is relevant to answering that question = .
Step-by-step explanation:
Given : For 100 births,
and .
Also it is said that consider a number of girls to be significantly high if the appropriate probability is 0.05 or less
To check :- If 55 girls in 100 births a significantly high number of girls .
We can see that
and , it means it is likely to occur 55 or more girls .
So 55 can not be considered a significantly high number of girls.
A. 12
B. 10
C. 9
D. 11
B. 23/93.
C. 75/373.
D. 93/23 or 4 1/23.
Answer:
The answer is: 20
Step-by-step explanation:
Significant figures are the meaningful digits that contribute to the precision and accuracy of the given number.
The given number: 24.67 has four significant figures because all the non-zero digits are significant.
Rounding off refers to the method of expressing the given number to the nearest whole number or nearest thousand, hundred, ten, etc.
Now, rounding off the given number (24.67) to one significant figure gives 20, which has only one significant figure. As the trailing zero is not significant.
17 f(-2)=
f(-2) =
Work Shown:
f(x) = 3x + 2
f(-2) = 3(-2) + 2 ... each x replaced with -2
f(-2) = -6 + 2
f(-2) = -4