Astatistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and 52.0 minutes. find the probability that a given class period runs between 51.25 and 51.5 minutes.

0.125

Step-by-step explanation:

Given: A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed in interval (50,52).

∴ The probability density function of X will be :-

The required probability will be:-

Hence, the probability that a given class period runs between 51.25 and 51.5 minutes =0.125

mk./km: lm

step-by-step explanation:

,mlmlm

; mk

lk

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)