R=4 because 20-4 = 16 and 4 times 4 = 16
.03*.03=.009 .009*.03=.000027 so the answer is .000027
Answer: your answer would be
x-30y=100 and 10y = x - 20
Step-by-step explanation:
is that a true or false kind of question or what is it meant to be?
Step-by-step explanation:
a. The mean can be found using the AVERAGE() function.
x = 272.7
b. The standard deviation can be found with the STDEV() function.
s = 39.9
c. The t-score can be found with the T.INV.2T() function. The confidence level is 0.04, and the degrees of freedom is 26.
t = 2.162
d. Find the lower and upper ends of the confidence interval.
Lower = 272.7 − 2.162 × 39.9 = 186.5
Upper = 272.7 + 2.162 × 39.9 = 358.9
