Sured to the nearest
24. The heights of some plants in a nursery were measured to the ne
centimetre and the results recorded in the table below.
Height (cm) / 5-9 10-14 15-19 20-24 25–29 30–34 | 35–39 40-44 Tas
No of plants 4 9 15 20 30 12 5 3
By modifying the table
(a) Use the method of assumed mean to calculate the actual mean
| height of the plants.
(b) Calculate to one deccimal place the standard deviation of the
distribution.
(4 mark
(6 mar

step-by-step explan mxfcg'k; uafwgzfgjhklhgation:

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

welll its a very hard question but ill

step-by-step explanation:

first you take the 6 dollars and add 10 to it then add the 50 to that then multiply by 8 with xy and your answer will be

hope this