Answer:
17%, 1/4, 1.7
Step-by-step explanation:
Convert each to decimals: 17% = .17, 1/4 = .25, then order from least to greatest
Answer:
4/3
Step-by-step explanation:
2/5 / 3/10
2/5 *10/3
20/15
4/3
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Answer:
a. 0.333
b. 0.657
c. 1.667
d. -4.07
Step-by-step explanation:
a. Expected time of the first purchase is 10/30 = 0.333
b. Probability for time of 0.14 minutes before first purchase is :
e^-rt, r = 30/10 = 3 , t = 0.14
e^ -3 * 0.14 = 0.65704
c. Expected time until 5th order :
1 / [30/10] * 5 = 1.6667
d. Probability that 8th purchase will occur between 1.33 and 2 minutes ;
[30/10 ] / [ 1/2] = 6
Chi squared distribution ;
1.33 * 6 - 2 * 6 = -4.02
