The table below shows the probabilities of selecting one ball at random from a bag of balls.
Colour
Red
Black
Yellow
White
Purple
Probability
0.25
0.14
0.06
0.15
0.40
Are there any balls of another colour in the bag? Give a reason for your
answer.

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

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.