For each of the following intervals, give the interval width, the real limits, the apparent limits of the next higher interval, and the real limits of the next higher interval.

(a) 5-9, where the scores were rounded to the nearest whole number.

(b) 40-49, where the scores were rounded to the nearest whole number.

(c) 2.0-2.4, where the scores were rounded to the nearest tenth.

(d) 60-70, where scores are accurate to the nearest ten.

(e) 1.75-1.99, where scores were rounded to the nearest hundredth.