(Answered) Question suppose that a volcano is erupting and readings of

Statistics

Question: Suppose that a volcano is erupting and readings of the rate r(t) at which solid materials are spewed into the atmosphere are given in the table. The time t measured in seconds and the units for r(t)are tonnes (metric tons) per second.

t 0 1 2 3 4 5 6

r(t) 2 10 24 36 46 54 60

(a) Give upper and lower estimates for the quantity Q6 of erupted materials after 6 seconds.

(b) Use the Midpoint Rule to estimate Q6.

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