70+74+87+85 = 316
For the 5th test score, an 80 average needs 400 as the total score. So 400-316 = 84 on the next test.
<em>Hello your answer is down below!!</em>
D. Closed circle on 8, shading to the right.
<em>Short Explanation: </em>
x-3>=5
x>=8
This means that x can be any number larger than 8, with 8 included.
(because it was greater than OR EQUAL TO) and shading on the right (GREATER THAN)
This requires the Poisson distribution, where
area = 5-acres
and mean number of field mice = 12 (in 5-acres of field)
therefore
lambda=12 (mean, given)
and the probability of k mice in the 5-acre field is given by the Poisson distribution as
P(X=k)=lambda^k * e^(-lambda) / k! ..............(1)
To find the probability of having LESS than 7 field mice, we add the probabilities of 0 to 6, which is
P(X<7)=P(X=0)+P(X=1)+...+P(X=6)
evaluating with equation (1) for X=0 to 6, we get:
0 0.0000061 0.0000742 0.0004423 0.0017704 0.0053095 0.0127416 0.025481Total = 0.045822
Answer: The probability that fewer than 7 field mice are found in the 5-acre field is 0.0458.
To make a profit of $10, the box should sell out for $30+$10=$40. Divided by 50 bars, that's 80 cents per bar.
Answer:
i think the answer would be y>40
