STATISTICS AND PROBABILITY 2 The table shows the distances walked (in kilometers) by members of a
walking group in one week
Cumulative frequency
Distance, d (k/m)
0<d<3
3<d<6
6<d< 9
9<d<12
12 <d<15

Frequency
4
14
6
8
4

Cumulative frequency

a Copy and complete the table
b Construct a cumulative frequency curve to represent this data
c Find estimates for the median and quartiles,
d Find estimates for the range and interquartile range

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

~

i believe the answer is 323 ft

step-by-step explanation: