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

i need more info. are you looked to see there mph? how much they deliver? how far they go?

step-by-step explanation:

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

it's a proportional graph.

step-by-step explanation:

8 x 5 = 40         (and you have -8x and -5y)

x= absiss

y= orderly

so you have a proportional graph.

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q