The heights of 200 adults were recorded and divided into two categories.
2 answers:
You might be interested in
Answer:
a) 2.60x10^-7
b) 5.31x10^-5
c) 2.19x10^-3
Step-by-step explanation:
X=the number of hits
Probability can be determined by taking the number of successful outcomes and dividing it by the total number of possible outcomes.
Now
a) P(X=6)=P({1, 1, 1, 1, 1, 1})=6/40*5/39*4/38*3/37*2/36*1/35=2.60x10^-7
b) P(X=5)=P({0, 1, 1, 1, 1, 1})+P({1, 0, 1, 1, 1, 1})+...+P({1, 1, 1, 1, 1, 0}), and each scenario carries the same probability
P(X=5)=6P({1, 1, 1, 1, 1, 0})=6*(6/40*5/39*4/38*3/37*2/36*34/35)=5.31x10^-5
c) P(X=4)=P({0, 0, 1, 1, 1, 1})+...+P({1, 1, 1, 1, 0, 0}), where each case has an identical probability.
Answer:
StartFraction StartRoot 30 EndRoot minus 3 StartRoot 2 EndRoot + StartRoot 55 EndRoot minus StartRoot 33 EndRoot Over 2
Step-by-step explanation:
We are given the surdic equation depicted in .
To calculate the quotient, we will rationalize by multiplying both the numerator and denominator of the function by the conjugate of the denominator.
The denominator shown in has a conjugate of
.
After multiplying by , we achieve;
The resulting expression provides the needed answer.