**Answer:**

89%

**Explanation:**

according to Chebyshev's theorem, for any k > 1, at least [1 - (1/k^2)] of the data will lie within k standard deviations of the mean.Therefore, Chebyshev's theorem formula can be given as follows:

Chebyshev's theorem formula = 1 - (1/k^2) ...................... (1)

In order to fing k, we proceed as follows:

1. Subtract the mean of rents from the larger rent value,

That is, $7,000 - $4,000 = $3,000

2. Divide the difference of $3,000 above by the standard deviation to obtain k as follows:

k = $3,000 ÷ $1000 = 3

3. Substitute 3 for k in equation (1) as follows:

Chebyshev's theorem formula = 1 - (1/3^2)

= 1 - (1/9)

= 1 - 0.11

= 0.89

If we multiply 0.89 by 100, we have 89%.

Therefore, 89% of the rents in the sample will fall between $1000 and $7000 per month.