John is interested in purchasing a multi-office building
containing five offices. The current owner provides the following
probability distribution indicating the probability that the given
number of offices will be leased each year.
Number of Lease Offices | 0 | 1 | 2 | 3 | 4 | 5 |
Probability | 2/7 | 3/35 | 6/35 | 1/7 | 9/35 | 2/35 |
If each yearly lease is $12,000, how much could John expect to
collect in yearly leases for the whole building in a given year?(in
dollars)
Number of lease offices (X) | 0 | 1 | 2 | 3 | 4 | 5 |
Probability , P(X) | 2/7 | 3/35 | 6/35 | 1/7 | 9/35 | 2/35 |
So, Expected number of lease offices = E(X) = X * P(X) = 0 * 2/7 + 1 * 3/35 + 2 * 6/35 + 3 *1/7 + 4 * 9/35 + 5 * 2/35
= 2.17143
each yearly lease is $12,000
So , John could expect to collect in yearly leases for the whole building in a given year = 2.17143 * $12,000
= $ 26057.16 [Ans]
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