Which expression is another way to write the expression shown here 5a+ 5b+ 5c+ 5d
5abcd
5a+bcd
5(a+b+c+d
(5a)(5b)(5c)(5d)

Answer these questions showing your work plz

Find y to the nearest hundreds place

1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed