Frequency Distribution-Using the chart below does this approcimate a normal curve?

Question

# of Boards Rejected in a Week & Frequency of Boards Rejected 6 boards rejected 2times; 7 boards rejected 6 times; 8 boards rejected 7 times; 9 rejected 8; 10 rej 9; 11 rej 3; 12 rej 2; 13 rej 1
Standard Deviation = 3.105295017
What is the probability that at least 7 rejected boards will be produced next week?

Answer 1

Not even close to a normal distribution . . .
. x. f . P(x) . Z(x)
. 6 2 0.053 0.053
. 7 6 0.158 0.211
. 8 7 0.184 0.395
. 9 8 0.211 0.605
10 9 0.237 0.842
11 3 0.079 0.921
12 2 0.053 0.974
13 1 0.026 1.000
. 38
P(x>6) = 1 - 0.053 = 0.947