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Construct both an ungrouped and a grouped frequency distribution for the data given below:
124 115 111 112 118 123 121 116 114 113
118 110 110 112 116 118 120 115 120 110
 one year ago
 one year ago
Construct both an ungrouped and a grouped frequency distribution for the data given below: 124 115 111 112 118 123 121 116 114 113 118 110 110 112 116 118 120 115 120 110
 one year ago
 one year ago

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DarkendSinz30Best ResponseYou've already chosen the best response.0
I know I have to organize them from least to greatest right?
 one year ago

sirm3dBest ResponseYou've already chosen the best response.0
yes. for the grouped frequency distribution, how many intervals are needed?
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
110,110,110,111,112,112,113,114,115,115,116,116,118,118,118,120,121,123,124
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
I am going to say 4?
 one year ago

sirm3dBest ResponseYou've already chosen the best response.0
is there any formula for this number of intervals?
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
I don't follow if there is I can't remember what the formula is?
 one year ago

sirm3dBest ResponseYou've already chosen the best response.0
the general rule is to use not too few and not too many intervals. so 4 is okay me.
 one year ago

sirm3dBest ResponseYou've already chosen the best response.0
just make sure that the low interval must include 110 and the high interval must include 124. also, equal intervals are preferred over unequal intervals, particularly to ratio type of data.
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
dw:1354406677376:dw
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
does that look right?
 one year ago

sirm3dBest ResponseYou've already chosen the best response.0
nope. the sizes are different. try 110113, 114117,118121, 122125
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
okay it will be the numbers though right?
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
X F  110  113 7 114  117 5 118  121 5 122  125 2
 one year ago

DarkendSinz30Best ResponseYou've already chosen the best response.0
That looks better
 one year ago

sirm3dBest ResponseYou've already chosen the best response.0
there are 20 data points in your given, but you only have a total of 19 in your grouped frequency distribution.
 one year ago
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