Aspecial needs teacher records the number of trials it takes a sample of her
students to learn a new task. the scores (number of trials) are as follows: 5, 9, 10,
11, 15, 5, 5,9,10,11,15,5.. compute the sample mean, sum of squares, variance
and standard deviation as an estimate of her total class of students. show your
work.

Can you draw an isosceles triangle with only one 80 degree angle?

What is a rational number between 9.5 and 9.7

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.