True - since the outlier is way off it will cause your average to mess up which is why we test multiple times to make sure we are more accurate with our numbers
Answer:
The number N of bacteria in a refrigerated food is given by N(T) = 10T^2 - 20T + 600, 2 ≤ T ≤ 20 where T is the temperature of the food in degrees Celsius. When the food is removed from refrigeration, the temperature of the food is given by T(t) = 3t + 2, 0 ≤ t ≤ 6 where t is the time in hours.
Step-by-step explanation:
Answer:
a. 0.5
Step-by-step explanation:
We know that X follows normal distribution with
mean=75
standard deviation=8
P(0<Z<∞)
The area under the normal curve is 1 and the (0<Z<∞) =0.5 and (-∞<Z<0) =0.5
So, P(0<Z<∞)=0.5
Hence the P(X ≥ 75)=0.5
I think you worded that a little wrong
Answer:
x=3 and x=-5
Step-by-step explanation:
To find the x intercepts set y =0 and solve for x
0 = x^2+2x-15
Factor
What two numbers multiply to -15 and add to 2
5*-3 = -15
5+-3 =2
0 = (x+5) (x-3)
Using the zero product property
x+5=0 x-3 =0
x=-5 x=3
