Answer:
Step-by-step explanation:
reg. cones get 2 scoops, lg cones get 3 scoops
he scooped 234 regular cones.....234* 2 = 468 scoops
he scooped 156 lg cones.....156 * 3 = 468 scoops
thats a total of 468 + 468 = 936 scoops
each scoop weighs 3 oz.....so the total weight of the ice cream is :
936 * 3 = 2808 oz
1 lb is 16 oz....so 2808 oz is : 2808/16 = 175.5 lbs
if a tub of ice cream weighs 10 lbs, then richard used :
175.5 / 10 = 17.55.......he used 17.55 tubs full
That would be 6.64 / 1.35 = 4.9 times (to the nearest tenth.)
Answer:
106
Step-by-step explanation:
Given that:
Mean (m) = 13.5 pounds
Error margin = 0.025
α = 99%
Variation interval = range = 13.3 to 13.7
Standard deviation (σ) estimate from range :
Range / 4
(13.7 - 13.3) /4
= 0.4 / 4
= 0.1
Zcritical at 99% = 2.576
Using the formula :
Sample size (n) = [ (Zcritical * σ) / M. E]^2
n = [(2.576 * 0.1) / 0.025]^2
n = (0.2576 / 0.025)
n = 10.304^2
n = 106.172
n = 107 samples
Unrealiable
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