Determine the null space of the given matrix a. express it in set notation. find a basis for the null space of a. what is the dimension of the nullspace(a)? a = [0 -2 5 3 0 -4 -2 4 0 -6 -3 6] (a) find a basis for the null space of a. what is the dimension of the nullspace(a)? (b) find a basis and the dimension of the rowspace(a). (c) find a basis and the dimension of the colspace(a).

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step-by-step explanation:

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b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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