12. the following data represent scores of 34 students on a calculus test.
om aange=34
72 5973
72
72
74 74 61 67 67
72 78 80 57 56
56 76 72 54
86-53= 35
65
889 74 57 83 68
79
73
71
70 65
67
72 76
35
classes
67
(a) construct a histogram for this distribution. choose an appropriate bin width, and be sure to
provide a label and scale for each axis.
(b) based on your histogram, what numerical measures of center and spread would be best to
use for this distribution? explain your choice.

Ahypothesis test is conducted with a significance level of 5%. the alternative hypothesis states that more than 65% of a population is right-handed. the p-value for the test is calculated to be 0.03. which of the following statements is correct? we can conclude that more than 3% of the population is right-handed. we cannot conclude that more than 65% of the population is right-handed. we can conclude that more than 65% of the population is right-handed. we can conclude that exactly 3% of the population is right-handed. there is not enough information given to make a conclusion.

Ineed asap! i need to finish a lab report but i don't understand this if starch +saliva treated with vinegar(acid ) what does indicate?

How does backward chaining differ from forward chaining? psychology 20pts