In a relative frequency distribution, what should the relative frequencies add up to? select the correct choice and, if necessary, fill in the answer box to complete your choice. a. the relative frequencies add up to nothing. b. the relative frequencies add up to the total number of observations.

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

What is the rate of change in a objects position?