In a large human population, cranial length is approximately normally distributed with a mean of 185.6 mm and a standard deviation of 12.7 mm. What is the probability that a random sample of size 10 from this population will have a mean less than than 180? a. 0.0174 b. 0.1357 c. 0.0823 d. -1.39

The correct option is  c

Step-by-step explanation:

From the question we are told that

   The mean is  

   The standard deviation is  

   The sample size is  n = 10  

    Generally the standard error of the mean is mathematically represented as

=>    

=>    

Generally the probability that a random sample of size 10 from this population will have a mean less than than 180 is mathematically represented as

From the z table  the area under the normal curve to the left corresponding to    -1.394  is  

=>      

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.