6. This box plot shows the number of minutes passengers spent in a station waiting room. What is the range of times spent in the
waiting room? 7. This box plot shows the number of minutes passengers spent in a different station waiting room. What is the inter-quartile range of times spent in the waiting room? 8. This box plot shows the lengths of leaves (in centimeters) collected by a botanist. Express the minimum length as a percentage of the maximum length. 6 points if correct
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Answer:
Check the explanation
Step-by-step explanation:
Since each and every one of the 4 hallways is equally likely then
Now, if he chooses H1 he escapes after 12 minutes then
If he chooses H2 then he wastes 10 minutes and then he is again in the same starting
position so he expects to escape in E(T) minutes, then
Analogously, if he chooses H3 then he wastes 40 minutes and then he is again in the same starting
position so he expects to escape in E(T) minutes, then
Therefore
So we have
Therefore he is expected to escape in 72 minutes