Answer:
A binomial probability density function should be used because the question asks for determining the probability that exactly 10 students wear glasses.
Step-by-step explanation:
A binomial probability density function is used when we want to know the probability of an exact value.
A cumulative distribution function is used when we want to know the probability of less than or equal to a value.
Answer:
I will do a step by step explanation to help you.
First, subtract 16 from 31 so you can simplify what you need to find. We will call the unknown number X. So 5x = 15
15/5 = 3 so X = 3
Lets plug in X
3 x 5 + 16 = 31
Makes sense!
Hope this helps
Answer
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Hope this help you?
Answer:
5/10 and 3/10
Step-by-step explanation:
because i believe that if u have 5 pencils and 5 pens all together thats 10 so it would be a 5/10 chance same with the second one hopefully this is right and i dont know if its simplified
To find the area of a RIGHT ANGLE triangle, you do base x height then divide it by two.
(we divide by two because a parallelogram can be split into two triangles so we’re basically finding the area of that triangle twice to make an imaginary parallelogram then halving it to get the area of just the triangle).
because you didn’t attach a photo, im not entirely sure which length you gave is the height and base but because a rule for right angle triangles is that the longest length (called the hypotenuse) is always opposite the angle so we’re gonna assume that 32. 5cm is the hypotenuse for this triangle.
this means that 31.2cm and 9.1cm are our base and height length (interchangeable).
so we do
— 31.2 x 9.1 = 283.92
— 283.92 / 2 = 141.96cm squared (because it’s an area!)
hope this helped~ :)
