Question

draw any triangle ABC and let D be the mid-point of AB. Using ruler and compasses draw the line through D parallel to WC to meet AC in E. Measure DE, AE and EC. Do you find that AE = EC and DE = ½ BE?

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Answer 1

Answer:

Analyse the variance in the Latin square of yields (in quintals) of wheat where P, Q, R, S represent the different manures used.

S 222 P 221 R 223 Q 222

Q224 R 223 P 222 S 225

P 220 Q 219 S 220 R 221

R 222 S 223 Q 221 P 222

Test whether the different manures used have given significantly different yields