Find the class boundaries.
Class limits
55-59
60–64
65-69
70-74
75–79
80-84
85–89

What are the class boundaries

Step-by-step explanation:

To find the class boundary of this

We have to get the lower boundary and upper boundary

54.5-59.5

59.5-64.5

64.5-69.5

69.5-74.5

74.5-79.5

79.5-84.5

84.5-89.5

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

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step-by-step explanation: