Answer: A
Step-by-step explanation:
Answer:
2.897
Step-by-step explanation:
Let us find the mean and variance for the sample first.
105 104 110 112
114 106 108 109
Mean = sum/8 = 108.5
Variance = 12
Std dev = sq rt of variance = 3.464
Std error = std dev/ sq rt n
since n =8, we get std error = 1.225
Since sample size is small, df =8-1 =7
For 95% confidence intervals, t critical value for two tailed=2.365
Margin of error = std error x t critical = 1.225(2.365)
=2.897
5%, 0.5, 5 from smallest to largest.
20 x 6 = 120 in³ ( chocolate )
V ( pyramid ) = 1/3 B h = 1/3 · 1 · 2 = 2/3 in³
120 : 2/3 = 120 · 3/2 = 180
Answer: The largest number of pyramids she can make is B ) 180
If im not mistaken its a 1/8 probability
