1) By rounding each number to 1 significant figure, estimate the answers to

23.4*13.9

0.18

2) work out an estimate for

√4.92+2.18*7.31

3) using approximations to 1 significant figure, estimate the value of

0.482*61.2^2

√98.01

What are “like terms”? why can we only add like terms?

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.