The lifespans of gorillas in a particular zoo are normally distributed. The average gorilla lives 16 years; the standard deviation is 1.7 years.
Use the empirical rule (68 - 95 - 99.7%) to estimate the probability of a gorilla living between 14.3
and 19.4 years.

There are the few reasons for growth characterization are more useful on agar plates than on agar slant are discussed below.

Explanation:

Generally, agar plates are very larger and streaking out the bacteria can be possible in it. By doing this, you can find the analyzation of individual colonies of their morphology with the other uses.

Agar slants are usually used for the short time period of  stock cultures of bacteria.Agar slants can be usually used to find the motility of bacteria by doing a single steak inoculation up the center of slant. Agar plates are used used in stock cultures growing that can be refrigerated after the incubation and for several weeks it can be maintained.