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Use an RMD document to include the following answers:Within Use a graphical method to describe the velocity distribution of galaxy cluster A 1 7 7

Use an RMD document to include the following answers:Within Use a graphical method to describe the velocity distribution of galaxy cluster A1775.( Note if you use hist() explore the options to help the plot)
Examine the graph, part a. Is there evidence to support the double cluster theory? Explain.
Calculate numerical descriptive measures (e.g., mean and standard deviation) for galaxy velocities in cluster A1775. Depending on your answer to part b, you may need to calculate two sets of numerical descriptive measures, one for each of the clusters (say, A1775A and A1775B, use side-by-side boxplots with a formula in the argument) within the double cluster. (Please note that this will require some wrangling of the data -- you may use [] or the dplyr package)
Suppose you observe a galaxy velocity of 20,000 km/s. Is this galaxy likely to belong to cluster A1775A or A1775B? Explain.
5-Using the unclustered data (51 values) how many measured velocities were within 1 standard deviation of the mean?
(Please give me this answer, only #5.)
VELOCITY
22922
20210
21911
19225
18792
21993
23059
20785
22781
23303
22192
19462
19057
23017
20186
23292
19408
24909
19866
22891
23121
19673
23261
22796
22355
19807
23432
22625
22744
22426
19111
18933
22417
19595
23408
22809
19619
22738
18499
19130
23220
22647
22718
22779
19026
22513
19740
22682
19179
19404
22193
So, there' sno specific answer for #5. I submit the question twice.
I just need the exact answer for #5 specifically.

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