Jose plans to use a microscope to observe a cell from a maple leaf and a cell from a snake's skin. Which of the following will Jose most likely see present in both cells?

An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.

What is the magnitude of the gravitational force acting on the earth due to the sun?

Each line (unit) on the horizontal axis represents: 5 years 10 years 20 years all of the above