40. the scores of geography test of 60 students of zanaki secondary school were
recorded as follow:
class
20-
25 30- 35- 40- 45-
inteval
50-54
24
55- 60-
29
34
39 44 49
59 64
frequenc 7 10
2
65-
69
2
8
8
4
a) prepare the frequency distribution table
b) find the mode
c) draw the cumulative frequency curve (ogive) and use it to estimate the
median

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a. the offspring are more likely to have freckles. b. the offspring are more likely to have no freckles. c. the likelihood of the offspring having freckles and not having freckles is the same. d. the likelihood of the offspring having freckles and not having freckles cannot be determined.

What substance acts to prevent sudden ph changes in bodily fluids?

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?