Answer:
the probability that exactly 8 dentists in 10 samples recommend Colgate toothpaste is;
P(X) = 0.0043
P(X) = 0.43%
Step-by-step explanation:
The probability that a dentist recommend Colgate is;
P = 90% = 0.9
The probability that a dentist doesn't recommend Colgate is;
P' = 1 - P = 1 -0.9 = 0.1
Of 10 sample dentists, the probability that exactly 8 dentists recommend Colgate toothpaste is;
8 will recommend and two will not recommend it.
P(X) = P^8 × P'^2
P(X) = (0.9)^8 × (0.1)^2
P(X) = 0.0043
P(X) = 0.43%
Answer:
The graph is shifted right by 9 units and down by 3 units
Step-by-step explanation:
5a-5=7+2a -- we need to isolate a. Subtract 2a from both sides
3a-5=7 -- add 5 to both sides
3a=12 -- divide by 3
a=4
(A) 1.18*10^3
When you multiply by 10^3, that means you're moving the decimal 3 places to the right.
1.18 becomes <em>1,180</em>.
(B) 6.701*10^-2
When you multiply by a negative exponent, it moves the decimal to the left. 10^-2 moves the decimal 2 places to the left.
6.701 becomes <em>0.0671</em>
