I calculated profile frequency above, .00002688. How can I convert this into a n

Question

I calculated profile frequency above, .00002688. How can I convert this into a number like 1 in a billion, to show the chance that the match would occur by random chance?

B. In a crime in Israel, a man knocked a woman unconscious and raped her. He didn't leave any hairs at the crime scene but he left eyeglasses with unusual frames and a half-eaten lollipop at the scene. An optician helped the police locate the man. DNA from blood taken from the suspect matched DNA from cheek-lining cells removed from the tell-tale lollipop at four repeat loci on different chromosomes. Allele frequencies from the man's ethnic group in Israel are listed beside the profile pattern shown here: 0.20 Repeat 1 0.30 Repeat 2 0.70 Repeat 3 0.10 0.40 0.20 2 Repeat 4 00002687

Explanation / Answer

you just need to divide it by 1.

here 1/0.00002688 =37202.38

hence once in 37202.38 cases.

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