Answer:
3.5
Step-by-step explanation:
70 percent of 20 is 16.5 so if 16.5 - 20 is 3.5 then that's the answer
Answer:
66.28% of students study more than 8 hours
Step-by-step explanation:
The percent of students study more than 8 hour can be calculated as
P(X>8)=?
P(X>8)=P((X-mean)/sd>(8-9.92)/4.54)
The calculated z-score is -0.42.
P(X>8)=P(Z>-0.42)
P(X>8)=P(0<Z<-0.42)+P(0<Z<∞)
P(X>8)=0.1628+0.5=0.6628.
Thus, 66.28% of students study more than 8 hours.
Answer:
2
Step-by-step explanation:
1+1=2
Answer:
(-∞, ∞)
Step-by-step explanation:
Given,
Then (fºg)(x) would be ,
Since this is a polynomial, we know domain of a polynomial is all real number.
Therefore the domain of this (fºg)(x) is (-∞, ∞).
Answer:
x=5
Step-by-step explanation:
