Write the summation to estimate the area under the curve y = 1 + x^2 from x = –1 to x = 2 using 3 rectangles and right endpoints
.
the summation from i equals negative 1 to 2 of the quantity i squared plus 1
the summation from i equals 0 to 2 of the quantity i squared plus 1
the summation from i equals 1 to 3 of the quantity i squared plus 1
None of these
the summation from i equals negative 1 to 2 of the quantity i squared plus 1
the summation from i equals 0 to 2 of the quantity i squared plus 1
the summation from i equals 1 to 3 of the quantity i squared plus 1
None of these
1 answer:
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Answer:
0.321 is the probability that their mean printing speed of the sample is greater than 17.99 ppm.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 17.39 ppm
Standard Deviation, σ = 4.25 ppm
Sample size = 11
We are given that the distribution of printing speed is a bell shaped distribution that is a normal distribution.
Formula:
P(printing speed of the sample is greater than 17.99 ppm.)
P(x > 17.99)
Calculating the value from the standard normal table we have,
Thus, 0.321 is the probability that their mean printing speed of the sample is greater than 17.99 ppm.