Lamar collected a random sample of data about the number of letters in the full names of seventh graders at his school. His sample mean was 10.2
10.2. Lamar's teacher told him that the population mean is
12.4
12.4. Lamar thinks he did something wrong because his sample mean is not the same as the population mean.

Should Lamar be concerned?

Pls help

answer: i would say b

step-by-step explanation:

with the way the question is worded, i believe b is the answer

the cost of the apple depends on the weight

40 minutes

step-by-step explanation:

add the time and multiply by 2

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.