Dental infection in homegrown felines is ordinarily connected with the aggregation of plaque on the teeth. **

8.A feline food producer is contemplating the gathering of plaque on the teeth of felines from a specific populace.

The gathering of plaque is surveyed utilizing a bright light procedure (FLT),

where an evaluator audits pictures of the feline's teeth and relegates a general rating from 0 to 10,

with lower esteems showing less plaque.

A past investigation demonstrates the populace dissemination of the FLT

appraisals for the teeth of felines is bimodal with mean = 6.3

and standard deviation = 2.2. Let xrepresent the example mean FLT rating.

For irregular examples of 400 felines from the populace, discover P(x< 6.41).

Portray the shape(is it a typical dispersion or do you need to apply as far as possible theorom to make it ordinary)

, track down the mean, standard deviation and probability(using normalcdf) .

Draw an ordinary bend