The ages of employees in a certain workplace are normally distributed. it is known that 80% of the workers are under 65 years old, and 67% are under 55 years old. what percentage of the workers are under 45 years old? (hint: first find  and σ by calculating the z-scores.) (b) suppose it is known that the wingspan x of the males of a certain bat species is normally distributed with some mean  and standard deviation σ, i. e., x n( , )   , while the wingspan y of the females is normally distributed with the same mean , but standard deviation twice that of the males, i. e., y n( , 2 )   . it is also known that 80% of the males have a wingspan less than a certain amount m. what percentage of the females have a wingspan less than this same amount m? (hint: calculate the z-scores.)

step-by-step explanation:

the options are kind of confusing. i can tell you what i see going on here when i look at the graph.

the class and exam medians are closely related, and it looks like the low outlier on the exam did pull the median lower. [tex][/tex]

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!

answer: the answer is b. i think hope i got it correct

step-by-step explanation: