Enter values. Frequency f is optional (blank = 1).
| x | f | Delete row |
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Binomial X ~ B(n, p)
Normal X ~ N(μ, σ²). Result is P(lower < X < upper).
Find x from cumulative tail area (left or right).
Blanks count as 0. Non-numeric entries show an error. For solve AX = B, enter the constants as the B vector (one value per equation).
Classroom demo mode — avoid long-running code.