Answer:
D. 8/9
Step-by-step explanation:
Calculators Rock!!!
So the answers are :
A: 5 seconds
and
B: 10 seconds
Answer:
The variance for the number of tasters is 4.2
Step-by-step explanation:
For each person, there are only two possible outcomes. Either they are tasters, or they are not. The probability of a person being a taster is independent of any other person. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The variance of the binomial distribution is:
It is known that 70% of the American people are "tasters" with the rest are "non-tasters". Suppose a genetics class of size 20
This means that
So
The variance for the number of tasters is 4.2
S= d/t would be the equation
First Q.
If y = 6 and x = 10, then what's x if y = 18
y / x = 6 / 10 = 0.6
y / x = 18 / x = 0.6
x = 0.6 * 18
x = 10.6
Second Q.
If y = 22 and x = 8, then what's y if x = -16
y / x = 22 / 8 = 2.75
y / x = y / -16 = 2.75
y = 2.75 * -16
y = -44